Difference between revisions of "Development"

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See also the [https://github.com/VisTrails/VisTrails/wiki/Development Github wiki]
See also the [https://github.com/VisTrails/VisTrails/wiki/Development Github wiki]


== 2015 ==
== 2017 ==
 
=== October 30, 2017 ===


=== December 9, 2015 ===
'''Updates'''
'''Updates'''
* [DK] PyQt5
* [RR] Running Python3 code


'''Items to Discuss'''
'''Items to Discuss'''


=== December 2, 2015 ===
* Installation:
** Use conda? (macOS hack to have .app bundle load conda-installed vistrails)
** Update conda recipe (pyqt4 restriction for now)
* Interpreter
* Release
* Integration
** hard to build same type of GUI in other apps that integrate core VisTrails (tend to use just the API)
** independent pieces of the GUI could be reused if they were more independent.
 
=== September 6, 2017 ===
 
'''Updates'''
'''Updates'''
* [TE] Package wrapping
 
** Wrapped most of numpy/scipy using __all__
* [RR] Fixes for scikit-learn, tables, usagestats
** Added class attribute and method access for classes (Can add to class or to separate inspector module)
** TODO: Document wrapping procedure


'''Items to Discuss'''
'''Items to Discuss'''


=== November 25, 2015 ===
* Stripped-down version of VisTrails to showcase new features?
** include meta-vistrail, bundles
** hide mashups, extra widgets, latex mode, etc.
* Interpreter
 
=== August 16, 2017 ===
 
'''Updates'''
'''Updates'''
* [RR] New interpreter is coming along
* [DK] meta-vistrail
** Everything is a stream
** Working actions: normal action in vistrail, pruning version tree, tagging operations, and change
** Task system, eventually work-stealing parallelism
** Interface
** Streams no longer advance in lock-step
*** Allows for constructions like filter, join, sorted-merge
** depth>1 still to be tested, no current plan to allow this through the module interface
*** Through looping though, can do streams of streams


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Package wrapping
* Notebook
** Wrapped most numpy functions (no polynomials)
* Interpreter
** and half of scipy classes and functions
* Web visualization packages (e.g. bokeh)
** Added functions manually from documentation (no parseable lists?)
** [https://github.com/VisTrails/VisTrails/pull/969 PR 969] has more details
** Focusing on data flow constructs (no property/method access for classes)
* Pipeline templates
*** Using spec diff (empty for now) and dynamic parser (stores spec in .vistrails/)
 
** Python class/function wrapper now stable
=== August 2, 2017 ===
** Add google doc parser?
*** Is there a parser available?


=== November 18, 2015 ===
'''Updates'''
'''Updates'''
* [DK] meta-vistrail work
** Extend Vistrail to MetaVistrail to support meta-actions
** Vistrail becomes less tied to workflows so it can also supporting versioning vistrails


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Package wrapping
** Numpy class wrapping works
*** Basic type is List, since most types are array_likes.
*** TODO: More classes and functions
*** Some operations are in-place and some aren't, and docstring not super clear
*** [RR] It seems only methods mutate, and most have a numpy.xx function equivalent; just manually go through the methods and remove the mutating ones?
** Class wrapper is modular
*** Docstring parser and type string parser can be customized
*** Classes can have optional attribute/method ports
**** Inspectors and attribute/method modules can be created separately
** Use PythonCalc as an example
*** Can be re-implemented as a function with a parseable docstring
*** [RR] PythonCalc is just an example, and it might actually make sense to get rid of it, or do a proper math package with scalar operations (as separate modules, no combobox)
** [RR] TensorFlow to use wrapping as well
*** Very simple (only types 'tensor' & 'variable')


=== November 11, 2015 ===
* Interpreter
** Using dask?
** Streaming an issue
* Notebooks
** What is an output of a module? (need to expose a specific output port or the entire module)
** Unifies some of the work from the script-workflow code
 
=== June 28, 2017 ===
 
'''Updates'''
'''Updates'''
* [DK] Testing UUID/SQLAlchemy branch
* [DK] Working on meta-versions
** would be nice to have pipeline and vistrail separate
** [RR] Then do we only have meta-actions, any change to the pipeline is a meta-action that adds a version that does the change?
** [DK] Yes?
* [RR] Notebook interface (Vizier) making good progress, figuring out cell outputs


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Package wrapping
** Wrapping numpy's classes using numpydoc (ndarray)
*** Wrapping constructor arguments, attribute getters/setters as module ports
**** Then how to access attributes afterwards?
***** Use input value port to class modules?
*** Wrap methods as modules? E.g., `ndarray.shape`.
*** Function wrapping is almost a subset of class wrapping
**** May be able to use the same parsing/execution methods
** VTK's non-getter/setter methods could be wrapped as modules
*** We could then remove extra logic in interpreter for keeping function order
** Bokeh uses autogenerated docstrings
*** We may be able to read the specification directly


* [RR] [https://github.com/VisTrails/VisTrails/pull/1138 TensorFlow package]
=== June 7, 2017 ===
** Basic setup working, can execute the Mandelbrot example
** Will autogenerate the operations


=== November 4, 2015 ===
'''Updates'''
'''Updates'''
* [RR] Interpreter work requires a fix for [https://github.com/VisTrails/VisTrails/issues/1137 DB issue #1137]
* [DK] Merged UUID/SQLAlchemy branch with new bundle format branch, getting rid of the bugs
* [DK] Kitware's Resonant [http://www.kitware.com/source/home/post/173]
** [https://github.com/girder/girder Girder]: data management system
** [https://github.com/Kitware/romanesco Romanesco]: execution engine, uses [http://www.celeryproject.org/ Celery] for task management
** Resonant Flow: web app for editing and executing workflows


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Added OSX Lion (10.7) VM on build machine using vagrant (seems ok with license?)
* [RR] How to specify an "intermediate output" that should be presented to the user, from any module? (useful for notebook interface)
** New builds works on Lion
** Can designate in module description an output port
** Change the minimum requirement to 10.7?
** Value has to be serializable
* [TE] Package wrapping
** Should use the OutputModes work to handle multiple modes, configuration, selection, ...
* Added upgrade suggestions using 2 spec versions ([http://pastebin.com/30XUU8Gp example])
* [RR] Is VisTrails with SQL usable concurrently?
** using name edit distance to find matches
** [DK] Probably not, demo from [TE] exists
** Could use something better like port similarity for modules, and type similarity for ports
 
** Should write python upgrade code?
=== May 10, 2017 ===
** Added spec to sklearn package
 
*** Can now diff spec versions and keep the spec static
'''Items to Discuss'''
*** There will be problems with downgrades and package versions
 
* Identifiers
* Bundles & DB Code
* Interpreter
* Merge / Versioning Version Trees
* Python3
* Workings of List
* Packages: Wrappers + new Versions (VTK7)
* Script Conversion
* Intermediate Outputs: reuse output module work?
** would be useful for both workflows (run to a particular checkpoint)
** and useful for notebook interfaces
* SQL backend: does it allow for concurrent access?
** Yes, real-time collaboration work for concurrent single vistrail access
** Should be able to access different vistrails at once without issues
 
=== April 19, 2017 ===


=== October 29, 2015 ===
'''Updates'''
'''Updates'''
* [TE] nightly-build-mac fixed (Needed to approve xcode license)


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] matplotlib wrapper
** ported to general spec
** Diff can be used on general spec
*** Only needed minor changes
*** Fixed indexing bug that corrupted specs
*** Can now move diff tools to core/wrapper
** Add new plots?
*** New plots in mpl 1.3: eventplot
*** New plots in mpl 1.4: angle_spectrum, magnitude_spectrum, phase_spectrum', violinplot
*** No new plots in mpl 1.5 (from looking at boilerplate.py)


=== October 21, 2015 ===
=== April 5, 2017 ===
 
'''Updates'''
'''Updates'''
* [RR] Alexis has arrived, will be working with [RR] on a more efficient interpreter


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] [https://github.com/VisTrails/VisTrails/pull/1133 New matplotlib package]
** Supporting multiple package versions
*** Check which version can be loaded [https://github.com/VisTrails/VisTrails/pull/1135 #1135]
*** We cannot show version requirements in the list of packages because old packages are loaded when importing the codepath
** Visual diff does not work well, but we can use the spec differ to see differences.
** Unifying vtk and matplotlib wrapping specs (WIP)
*** And porting matplotlibs spec differ to work on the general spec
*** Spec differ can then be used on vtk and other packages in the future
*** Will enable automatic upgrade generation
* [RR] Rework interpreter
** restore abstraction between interpreter/module code
** build looping, streaming, caching into the interpreter
** rework cache
** look into parallelism once basic functionality is there


=== October 14, 2015 ===
=== March 8, 2017 ===
 
'''Updates'''
'''Updates'''
* [RR] Added a looping indicator on modules [https://github.com/VisTrails/VisTrails/pull/1217 #1217]
** This makes it easier to understand what's looping, no need to follow edges and count
* [RR] Refactoring CLTools for integration in Docker package
* [RR] Will try to refactor autogenerated package logic next (need to update TensorFlow package for TF 1.0, should really be using this)


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] [https://github.com/VisTrails/VisTrails/pull/1133 New matplotlib package] (adding numpydoc parser)
* [RR] Problem with vtkRendererToSpreadsheet output mode: does it's own ModuleConnector handling, interfering with looping/streaming logic, to add the module ID on the renderers [https://github.com/VisTrails/VisTrails/issues/1216 #1216]
** Can we move this up to the renderer modules?
** Thankfully RR couldn't find much of this madness in the rest of code (outside of controlflow and parallelflow)
 
=== February 24, 2017 ===


=== October 7, 2015 ===
'''Updates'''
'''Updates'''
* [RR] Rich-text module documentation ([https://github.com/VisTrails/VisTrails/pull/1210 #1210])
** Went over packages and fixed format; maybe we should have a test to validate RST?
* [RR] Single-instance shutdown with <tt>--remote-shutdown</tt> ([https://github.com/VisTrails/VisTrails/pull/1204 #1204])
* [RR] Bundle installation not super reliable; probably need to go in and add checks for every usual environment


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] [https://github.com/VisTrails/VisTrails/tree/fix-matplotlib-parser New matplotlib parser] (adding numpydoc parser)
* [RR] There are issues with list-depth
** Added numpydoc attribute parser for plots.
** Some VTK ports marked with depth=1 don't actually accept multiple inputs (vtkDataSetMapper)
*** TODO: Need better port spec reconciliation with call signature parser.
** Issue with looping groups
*** We can create a general numpydoc parser, but attribute types are unique to matplotlib.
 
** Needs package versioning
=== January 25, 2017 ===
*** New spec will not support matplotlib < v1.4 due to changed path to axes classes.
*** Load spec version corresponding to installed matplotlib version?
*** Need version downgrades?


=== September 30, 2015 ===
'''Updates'''
'''Updates'''


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Updating Matplotlib parser
** Matplotlib docstring parser fails on numpy docstrings
** I have [https://github.com/VisTrails/VisTrails/commit/eae8b0c16260810587e47c41cab53552cbb3cf0a added basic numpydoc parsing]
*** Only used by a few docstrings so far
*** Parsing uses many sources (class tables, signatures, ACCEPTS, method docstrings, definition parsing).
** Caswell said they were thinking about moving to traitlets, but this is not ready yet


=== September 23, 2015 ===
* Scaling VisTrails
* sql-alchemy, uuid, bundle branches/merges
 
=== January 11, 2017 ===
 
'''Updates'''
'''Updates'''
* [TE] VisTrails 2.2.3 released
* [RR] New VisTrails version in Debian [https://packages.qa.debian.org/v/vistrails.html]
** Also have pushed to PyPI, binstar, etc.
** Sourceforge vs. GitHub
*** should be able to host releases on GitHub
*** nightly binaries pushed to sf each night
*** old binaries?
* [TE] Re-wrapping MatPlotlib
** Keep static generation - Docstrings are brittle beween matplotlib versions
** Keep generating the executable classes - but create functions, not vistrails Modules
*** Why is there so much patching?
** Re-implemented Alternate PortSpec for InputPortSpec
*** It will now inherit specs from parent (No need to reimplement)
** Module upgrades?


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] Collaboration with school of medicine to port HiC-bench to VisTrails
** Have homemade workflow system based on R scripts and symlinks
*** Each steps has multiple sets of parameters
*** Submits PBS jobs for each step with each set of parameters, using PBS job metadata to wait on previous step
*** Gets all results in directory structure <code>step3-parameters/step2-parameters/step1-parameters/files</code>
** VisTrails improves provenance capture and makes editing pipelines easier
*** Need better support for aggregation (groupby operation might be good enough; pandas?)
== 2016 ==
=== December 14, 2016 ===


=== September 16, 2015 ===
'''Updates'''
'''Updates'''
* [TE] Job Monitor tests and documentation done
* [RR] Single-instance code: over-engineered, but will work
** OK to leave document package in packages directory?
** (Have to avoid race conditions on startup, and OSes offer very different locking primitives)


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Library wrapping: How to do code patching? [https://docs.google.com/drawings/d/1Sh3eOXot6v2y880jHKQrqXqAwr-0aoqYligg3z8G8MY/edit?usp=sharing Wrapping diagram]
* Email from Matt Dirks: combobox should work, ask for more code?
** Insert code into module template (Old VTK code)
* Email from marin.nl:
** Patch the library that is called (New VTK code)
** looks like they would benefit from new interpreter
** Somehow store code in spec and apply when executed?
** how to store their consolidated provenance when they exchange .vt files around?
*** Executed code needs at a minimum access to inputs, outputs, current class
*** Use standard input/output dict and obj reference that the code operates on?
*** Can this be done while keeping the execution abstract?


* Do new release now?
=== November 30, 2016 ===


=== September 9, 2015 ===
'''Updates'''
'''Updates'''


'''Items to Discuss'''
'''Items to Discuss'''
* New release?
* [RR] Working on single instance code for MARIN ([https://github.com/VisTrails/VisTrails/pull/1205 #1205])
** [RR] wants reprounzip
** Remote shutdown ready ([https://github.com/VisTrails/VisTrails/pull/1204 #1204])
** tej changes & doc
** Still improving it
** job monitor & jobmixin fixes
** Want to return something more structured to the client (success/fail code, stdout, stderr)
** mongodb
** Should be usable without Qt
** reprounzip
* [DK] Shutting down VisTrails has issues: cleans up interpreter (to remove files) but also resets persistent pipeline for no reason
** warning: MplFigure type is int
* [DK] Working on batch execution using console_mode
** tabledata: add Reshape, DictoToTable & ListToTable, fix ListToTable with numpy arrays
* [DK] Settings aliased parameters when using core.api?
** PythonSource can have same name for an input & output
 
** don't show spreadsheet at exit
=== November 16, 2016 ===


=== September 2, 2015 ===
'''Updates'''
'''Updates'''
* [RR] Issue [https://github.com/VisTrails/VisTrails/issues/1200 #1200] from @samtux: need to set PyQt to API version 2 before ever importing it; using require_pyqt_api2() does that (also can install bundle)


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Limit autosaves? [https://github.com/VisTrails/VisTrails/pull/1126 #1126]


=== August 26, 2015 ===
* Email from Pieter: executing pipelines with parameters from command-line using single-instance
** Seems to work, main instance gets full command-line and alters configuration temporarily
** Not sure what his error is (VisTrails returns little information in a lot of cases); though execution error should return something more meaningful
** Actions:
*** Can add switch to kill main instance
*** Can improve single-instance code to return more meaningful errors + machine-readable output from "client" VisTrails
*** Add client/server code to <tt>core</tt> that doesn't use Qt? Also need a run.py-line entrypoint that doesn't use gui (calls console mode like <tt>gui.application.VistrailsApplicationSingleton#noninteractiveMode()</tt>)?
 
=== November 2, 2016 ===
 
'''Updates'''
'''Updates'''
* [TE] Added Job support to Parameter Explorations (Requested by Colin), and Mashups
 
** specify job ids, need to specify different ids for parameter explorations since they have the same version id
* New version 2.2-2 of Debian package, still [https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=796994 wrong copyright], and [https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=748692 broken bundle installation]
** how to deal with parameters passed in on command line
** Finally replied, says copyright issue will be fixed soon, working on including VisTrails 2.2.4 for Debian Stretch
* [General] provenance: should be creating a new version when we execute workflow with changed parameters?
* Working on Docker package, low hanging fruit because we have CLTools, and useful for some workflow (also step towards CWL support)
** currently, custom_params annotation stores this in provenance currently
 
** [RR] API doesn't record provenance if passing in parameters: http://git.io/vsAA5
'''Items to Discuss'''
'''Items to Discuss'''


=== August 19, 2015 ===
=== October 5, 2016 ===
 
'''Items to Discuss'''
 
* working toward a 3.0 release; [https://github.com/VisTrails/VisTrails/projects/1 project board]
** unique ids
** bundles
** GUI fixes
** wrapping updates
** python3
** interpreter?
 
* command-line input parameters to provenance
** [DK] we don't create a persisted workflow from those input params, i think
** [DK] these are already defined as aliases so we treat them differently form a normal input param
** [DK] still have the potential problem of allowing a user to view the workflow as it was run with a given set of aliases
** Do the vistrails variables values get stored in provenance? (what if values change?)
 
=== September 14, 2016 ===
 
'''Updates'''
'''Updates'''
* [RR] Improvements to tej, users' guide entry & example [https://github.com/VisTrails/VisTrails/pull/1105 #1105]
* [RR] Internal docs [https://github.com/VisTrails/VisTrails/pull/1116 #1116]
** On ReadTheDocs: [http://vistrails.readthedocs.org/ vistrails.readthedocs.org]
* [TE] Working on Job Monitor documentation


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] JobMixin and JobMonitor: stable now?
* [RR] [http://aosabook.org/en/vistrails.html VisTrails] in [http://aosabook.org/ The Architecture of Open Source Applications] Vol I (2012)
** Definitely needs more tests
** Did we know/contribute to this?
* [TE] Stop testing VisTrails 2.0?
*** [DK] Yes. We wrote the text for the VisTrails chapter
** Drafted response
*** [DK] Looks good, will forward.
 
=== August 31, 2016 ===


=== August 12, 2015 ===
'''Updates'''
'''Updates'''
* [RR] Went over vgc.poly.edu/vistrails.org config:
** Added TLS certificate (vistrails.org, www.vistrails.org, lists.vistrails.org, vgc.poly.edu and a few others)
** Fixed usersguide scripts (won't disappear again)
** Moved some websites over to HTTPS
** [https://docs.google.com/document/d/18YZewjR2YY9cQ9pzdA-nU9jbu2L7jYcPlDi3iaPadwA/edit Websites]
* [RR] users' guide on readthedocs: doesn't seem like we can have both the internal docs ([http://vistrails.readthedocs.io/ currently there]) and users' guide under the same RTD "project"
* [DK] UUID support almost complete (use-uuid branch), bundle translation then fits more easily on top of that


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] Internal docs [https://github.com/VisTrails/VisTrails/pull/1116 #1116]
* [RR] Move www.vistrails.org (wiki) to HTTPS? There is a trac at https://www.vistrails.org/
** On ReadTheDocs: [http://vistrails.readthedocs.org/ vistrails.readthedocs.org]
** Get rid of more services? (svn, trac, ...)
* [RR] JobMixin and JobMonitor: stable now?
* [RR] Notebook execution works. How do we support more languages (than Python)?
** Definitely needs more tests
** Need: detection, metadata reader, code to input values
* [RR] Improvements to tej, users' guide entry & example [https://github.com/VisTrails/VisTrails/pull/1105 #1105]
* [RR] ALPS and VisTrails 2.1 issue: should be using 2.2?
* [RR] Build broken on Travis; because of IPython 4 released today? ([https://travis-ci.org/VisTrails/VisTrails/builds/75279795 build 992]; [https://github.com/VisTrails/VisTrails/issues/1123 #1123])
 
=== August 17, 2016 ===


=== August 5, 2015 ===
'''Updates'''
'''Updates'''
* [TE] Fixes to Jobs
* [TE] Fixed [https://github.com/VisTrails/VisTrails/commit/2cd42d156243067a7663bb0bf0156e5d87188c2f parameter order upgrade bug] that breaks VTK examples.
** Could not delete jobs
* [TE] Matplotlib and sklearn are exportable using module-to-script api
** Could not run job in group
* [TE] Need to add to_python_script to pythonfunction.py to get bokeh and numpy export working.
** Job not reset when calling ModuleSuspended
** Added deleting job from context menu
* [RR] Writing documentation for everything [https://github.com/VisTrails/VisTrails/pull/1105 #1105]


'''Items to Discuss'''
'''Items to Discuss'''
* Version checks: Please use a method instead of hard-coded `try: int(v) except ValueError: ...` logic!
* Mashups: why do they share the same id scope?? (see MashupsManager.createMashupController)
* [TE] Wrap-up notes
=== August 10, 2016 ===


=== July 29, 2015 ===
'''Updates'''
'''Updates'''
* RR still looking into new interpreter thing
** Goal is to take out scheduling logic from Module so it can be split in multiple processes, and so that smarter strategies can be added in time
** This means some work on packages
** Spreadsheet can live in kernel process? Still some UI stuff that will take work (changing configuration, persistent archive's viewer, ...)
* [TE] Problems running examples [https://github.com/VisTrails/VisTrails/pull/1111 #1111]
** Testing of more examples requires additional packages on the test machines.
** Fixed faulty line-ending in PythonSource:s failing on Python 2.6.
** Test suite now testing SUDSWebServices (If web service is down, test suite will fail)
** preferences.py test failed reloading 'dialogs' package, switched to using 'URL'.


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Python Wrapper and scripting
** All changes merged into python-wrapper branch
*** Tests pass
*** Still need to update sub-branches
** Minor fixes
*** vtkPlot3DReader upgrade bug
*** Added tuple exporting
** Most of vtk examples can be exported [https://gist.github.com/rexissimus/5ac7374cde8525d84f9443f019d234e2 example]
*** Sometimes connections are wrong, executing workflow sometimes works, otherwise copy/pasting is necessary
**** Could be a bug in the old vistrail, but not sure
* [DK] Subworkflows and uuids
=== August 3, 2016 ===


=== July 22, 2015 ===
'''Updates'''
'''Updates'''
* [TE] mailing lists back online
 
* [TE] Working on [https://github.com/VisTrails/VisTrails/issues/1107 #1107]
* [RR] Working on ReproZip package


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] MongoDB package [https://github.com/VisTrails/VisTrails/pull/1106 #1106]
* [RR] Example for tej docs? [https://github.com/VisTrails/VisTrails/pull/1105 #1105]


=== July 15, 2015 ===
* [TE] Wrapper patches now stored as [https://github.com/VisTrails/VisTrails/blob/python-wrapper-script-patches/vistrails/packages/vtk/vtk_wrapper/vtk_patch.py python code]
** Connection variables now lowercase
** Can we use code as output variables?
*** E.g. "vtk_dataset_mapper.GetOutput(0)"
*** Could mutate output when output method is only supposed to be called once
*** Need to be able to rename output port as python code(e.g. when there are 2 "vtk_dataset_mapper"s)
 
=== July 27, 2016 ===
 
'''Updates'''
'''Updates'''
* 2.2.2 released
 
* [DK] DB bundle serialization implemented


'''Items to Discuss'''
'''Items to Discuss'''
* RR is considering executing everything in an IPython kernel (i.e. separate Python interpreter, like the one spawned for a notebook)
* [TE] Finished using patch in script [https://github.com/VisTrails/VisTrails/tree/python-wrapper-script-patches python-wrapper-script-patches]
** It's a separate process that we can restart without restarting the app/gui
** locale?
** We can isolate the execution environment (e.g. for the server)
** [https://gist.github.com/rexissimus/f0d6b026aa5a2a770847f3321744645d new patching example] vs [https://gist.github.com/rexissimus/b28d83ae516a519167f5751bb8ab3739 old patching example]
** We can run the whole thing remotely (if your data is elsewhere, just run VisTrails locally and the pipeline elsewhere)
** [https://github.com/VisTrails/VisTrails/blob/python-wrapper-script-patches/vistrails/packages/vtk/vtk_wrapper/parse.py#L135-L273 Example of new patches]
** Pipeline execution no longer makes the interface hang, it just makes the kernel hang (but that's fine)
** Legacy '.vtkInstance' is now added as a patch "self.vtkInstance=self" (see new patching example)
** We can use notebooks as modules (probably way nicer than the PythonSource module)
** [https://github.com/VisTrails/VisTrails/blob/python-wrapper-script-patches/vistrails/core/scripting/api.py New api for executing standalone modules]
** We can run multiple kernels so long as the ports carry things that are serializable
*** Accessing module was disabled for core/api, but a different api for this is probably better anyway.
*** meaning we can put the multithreaded-interpreter without all the hacky parts it has now
*** api.Package now gives [https://gist.github.com/rexissimus/f0d6b026aa5a2a770847f3321744645d#file-new_patching-py-L26 directly callable module compute functions]
*** we can run IPython kernels in all the languages IPython supports, [https://github.com/ipython/ipython/wiki/IPython-kernels-for-other-languages currently 46]
*** Only works on modules not using interpreter functionality ('.interpreter', etc.)
**** for zip file modules and others that need temp files and use the interpreter for this, need to modify the module, but could work around with python libraries for managing temp files
** Fixed more renaming issues - [https://github.com/VisTrails/VisTrails/blob/python-wrapper-script-patches/vistrails/core/scripting/scripts.py#L63-L64 function argument names should not be replaced]
** Still need to do something nicer for the patch formatting
*** patch keys currently contain non-python-variable characters but this can be fixed
*** Need to replace string template with python variables that is replacable using RedBaron
**** Patches could then look like:
 
    def vtkInstance():
        self.vtkInstance = self
 
=== July 20, 2016 ===


=== July 8, 2015 ===
'''Updates'''
'''Updates'''


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Buildbot github hook not working after IP address change
* [TE] New patch method for python-wrapper [https://gist.github.com/rexissimus/009b303e4cadcd4b8f2fec6cf848cb2b example]
* [TE] No reference to VistrailsApplication ([https://github.com/VisTrails/VisTrails/issues/1103 #1103])
** A patch is a string template with self/input/output variables for patching a class method
** [RR] Added PR [https://github.com/VisTrails/VisTrails/pull/1104 #1104]
** Patches are stored in xml specification
* [TE]  Reopening VT file after saving with bundled subworkflow won't offer subworkflow upgrade ([https://github.com/VisTrails/VisTrails/issues/1102 #1102])
** Patches are assigned to methods in ClassSpec's
** allow manual delete to fix right now
** Used both for execution in vistrails and when exporting as script
** fix this on top of the use-uuid branch
*** Executed with "exec" when run in vistrails
* [TE]  Release VisTrails 2.2.1? ([https://github.com/VisTrails/VisTrails/blob/v2.2/CHANGELOG CHANGELOG])
*** Turns patches into natural calls in script
** [https://github.com/VisTrails/VisTrails/pull/1093 output-modules-use-global-dir]
** Wrapping VTK library no longer needed
** [https://github.com/VisTrails/VisTrails/milestones/version%202.2 Current issues for 2.2]
*** Removes ".vtkInstance" (Automatically removed from PythonSources and vtkInteractionHandlers)
** Removed fix_classes.py (Subclassing of VTK classes to patch methods directly)
** Also used for port translations (With patch names like "basic:Color#input") (No more ugly input_t method definitions)
** TODO's
*** Add to export_as_script
*** Patch Modules that represent Python functions as well
 
* [vistrails-users] Read data from SQL example?
 
=== July 13, 2016 ===


=== July 1, 2015 ===
'''Updates'''
'''Updates'''
* [TE] PROV fixed
 
* [TE] Working on subworkflow issues
* [DK] bundles on sql-alchemy branch
* [RR] Considering reworking the controller (log vs exception problem, retained upgrades causing interferences) and also the interpreter (IPython?)
** Bundle, BundleMapping, and BundleSerializer
** New BaseSerializers to deal with versions of directory, zip, db serializers
** Can register the BundleSerializers with the base serializers
** Translation between bundle versions
** Bundle.add_object "just works" if an appropriate mapping was registered


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Simplified running module using API for scripting [https://gist.github.com/rexissimus/b28d83ae516a519167f5751bb8ab3739 example]
** API Module can be executed using '''compute''' method
*** Takes list of outputs to compute + inputs as keyword arguments
* Status of general cell synchronization (vistrails-users)
=== July 6, 2016 ===


=== June 24, 2015 ===
'''Updates'''
'''Updates'''
* [DK] Working on bundles


'''Items to Discuss'''
'''Items to Discuss'''
* UV-CDAT
* [TE] Using vistrails API in scripting [https://gist.github.com/rexissimus/034d9c4dedc3299a079e84981dedd8c7 example 1 (API with VTK)] [https://gist.github.com/rexissimus/a4a9ca6c08d4058c64967d2b35415fd5 example 2 (DownloadFile only)]
* [TE] Can a cyclic workflow be valid? ([https://github.com/VisTrails/VisTrails/issues/1097 #1097])
** Call module in script using vistrails API
** focus on disabling the ability to create cyclic pipelines because more things break than just this with a cyclic pipeline
** Can be used when no export method is defined.
* [RR] Relative paths ([https://github.com/VisTrails/VisTrails/pull/1057 #1057])
* [TE] [https://github.com/VisTrails/VisTrails/commit/c76c109349769fee1280f85c22678380a2f9cd39 Server news bug] Critical?
** This interacts with the new bundle; how do handle packing files inside the VT bundle?
**[RR] No, unreleased
* [DK] New bundle organization
** BundleMapping contains individual mappings from raw objects to BundleObj
** Must be separate in order to have in-memory, separate from serializer settings
 
=== June 29, 2016 ===


=== June 17, 2015 ===
'''Updates'''
'''Updates'''


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] current_version and reusing existing upgrades are broken ([https://github.com/VisTrails/VisTrails/issues/1095 ticket #1095])
* [TE] Export VTK as python script
** Could be that export to PROV is using an unflushed upgrade pipeline?
** Works on Terminator (Isosurface, Volume Rendering, clipping plane, combined rendering) [https://gist.github.com/rexissimus/16caf5200802e150296f62a0c7844c5a example]
** current_version would then be correct.
** Preludes (imports) still need improvements
** It may work to flush the actions before exporting?
** Works with vtkInteractionHandler (clipping plane)
** Resulting clipping plane is incorrect? (supposed to hide one side of the plane)
** vtkRendererOutput Uses VTKRenderWindow as output
*** Should support different output modes?
*** Does not work with multiple outputs (Next cell is displayed when current is closed)
*** Uses wrapped vtkInstance (as vvtk)
**** Create new patch system with code that can be used both in vistrails and in a python script?
 
=== June 22, 2016 ===


=== June 10, 2015 ===
'''Updates'''
'''Updates'''
* DAT: fixed VTK issue on Linux and Mac
* Still crashes on Windows. Need help! Reminder: this works in the VisTrails spreadsheet (QCellPresenter), although no widget get changed there during a drag
** Is it a VTK bug?
** Is it simply impossible to change widgets during the drag, should we do it a different way?
** Did I miss something that is done in VisTrails but somehow not in DAT?
** Low prio, UV-CDAT doesn't run on Windows anyway


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Executable Paper ([https://github.com/VisTrails/VisTrails/issues/1086 ticket #1088] [https://github.com/VisTrails/VisTrails/pull/1088 Updated pull request])
* [TE] Fix for upgraded analogies (PR [https://github.com/VisTrails/VisTrails/pull/1177 #1177])
* Single instance code and batch mode
** Uses module location to find module remap (The best we can do right now?)
** Also fixes remapped port names for connections to existing modules
** May still fail on complex upgrades like adding a function on an upgraded module that has a different port name
 
* [TE] Working on exporting wrapped libraries (VTK)
 
=== June 15, 2016 ===


=== June 3, 2015 ===
'''Updates'''
'''Updates'''
* [TE] Added depth logic to python script exporter ([https://github.com/VisTrails/VisTrails/commit/50f220e4f6abe5a7bb8689f73f456f43df2dbc12 full commit])
** Fully implements connection merging and list looping


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] Executable Paper ([https://github.com/VisTrails/VisTrails/issues/1086 ticket #1088] [https://github.com/VisTrails/VisTrails/pull/1088 pr])
** Requires fixes to command line parameters, Output modules, and batch mode
** How to test this
** Updated missing/outdated flags
** Fixed view issues when generating graphs
* [TE] batch mode
** SpreadsheetOutput not enabled in batch mode. Should we check is_running_gui instead?
** Other instance setting flags from caller
** Is graphsAsPdf replacing spreadsheetDumpPdf?
** graphsAsPdf true by Default?
** Batch mode executing by default (Not needed when generating graphs)
** Re-added workflowInfo as withWorkflowInfo for writing graph and xml workflow
** [DK] batch mode should be outputting to files or stdout, shouldn't always trigger SpreadsheetMode
** execute flag, maybe make execution the default and allow a "--no-execute" if you only want to capture graphs, for example


=== May 27, 2015 ===
* [TE] Making analogy work on upgraded workflows ([https://github.com/VisTrails/VisTrails/issues/1175 #1175])
** Analogy only works We need to use the non-upgraded action chain
** But pipelines need to be valid (matcher uses module portspecs)
** Tried to get upgrade remap from upgrade action, but this seems impossible
** Use module location instead?
*** Location should be identical for one-to-one module upgrades
 
=== June 1, 2016 ===
 
'''Updates'''
'''Updates'''
* VisTrails 2.2.4 announced (finally)
** 5 survey replies
** 47 downloads last week


'''Items to Discuss'''
'''Items to Discuss'''
* [vistrails-users] API question
* [TE] Export VTK as script (python-wrapper)
**  http://lists.vistrails.org/pipermail/vistrails-users/2015-May/000357.html
** to_python_script
* Status of DAT
*** needs the pipeline (or at least the connections)
** Can add VCS plot to DAT but need to work on configuration windows
**** Should not generate code for any possible VTK method (exporter detects which ports is used in the source)
** Documentation for graphics templates for UV-CDAT/vcs?
**** VTK needs to know connection order
* Qt support?
**** Adding functions directly to the script results in nicer code
** Add support for multiple input connections
** Add support for list looping
 
=== May 25, 2016 ===


=== May 20, 2015 ===
'''Updates'''
'''Updates'''
* Mailing-list fixed
* Getting stats from the "server news" mechanism (via [https://github.com/remram44/apache-log-info parser])


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] Reviving the DAT, integrating scripting & porting UV-CDAT!
* [RR] Alexis doing writeup on VisTrails, curious about interesting streaming use-cases (and potential future users)
** On [https://github.com/VisTrails/DAT GitHub] ([https://github.com/VisTrails/DAT/issues issues])
* [TE] Union ports
** Merging 2 years of development taking longer than expected, but getting there. The plan is to get the patches in VisTrails and never fork again, we never want to get in UV-CDAT's situation (and don't need to).
** Show union ports in pipeline (DEMO)
** VTK cell works fine on Linux but there was flickering on Mac & Windows before; still issues on Mac (Windows status unknown)
** Can get a VCS plot soon (but will need VTK cell fix)
** Integrate in UV-CDAT's build system (so we have cdms, VCS, ...) -> RR can do this, low priority
** How do we integrate scripting?
*** We want to be able to seamlessly make changes to a plot by changing Python code
*** Define new plots by entering Python code without writing modules/packages?
* [RR] UV-CDAT [https://github.com/UV-CDAT/uvcdat/issues/1275 needs] [https://github.com/VisTrails/VisTrails/pull/1073 #1073], please take a look
* [RR] Subworkflow issues
** [https://github.com/VisTrails/VisTrails/issues/1065 #1065]: missing attribute (fixed)
** [https://github.com/VisTrails/VisTrails/issues/1066 #1066]: groups in subworkflows were ignored when finding dependencies (fixed)
** [https://github.com/VisTrails/VisTrails/issues/725 #725]: "upgrade subworkflow" button not popping up (fixed); also, namespace issue
** [https://github.com/VisTrails/VisTrails/issues/1071 #1071]: subworkflows don't go through upgrades
* [RR] [https://github.com/VisTrails/VisTrails/issues/1074 #1074]: can't load and edit a single pipeline if upgrade happen


=== May 13, 2015 ===
=== May 18, 2016 ===
 
'''Items to Discuss'''
* [TE] mailing list still down - Julio working on it
* [TE] Improved union port
** New schema 1.0.5 adds portitem.union string attribute
** Works with pipeline view, parameter exploration view, and mashup view
** Should work well for matplotlib
** Use with VTK ports?
*** It uses [item_1,item_2] style ports usually with different tuple length.
* [TE] Remove emacs dependency from db generate [https://github.com/VisTrails/VisTrails/issues/1173 #1173]
 
=== May 11, 2016 ===
 
'''Items to Discuss'''
* [TE] Union type [https://github.com/VisTrails/VisTrails/issues/1172 #1172]
** GUI-based solution [https://github.com/VisTrails/VisTrails/tree/union-port Branch union-port] Demo?
*** Shows single port for all ports with same sort_key
*** Select specific type when adding/showing
*** Only one type should be visible on the module at any time
*** Making tuple parameters union types is probably too complicated
*** Should work with alternate specs like matplotlib (if sort_key is defined correctly)
 
* [TE] Feature suggestion: Let connections connect to functions/parameters
** Show functions and parameters as ports and toggle port visibility directly for functions and parameters
** Use separate views for ports and functions (like before)
*** Allow rearranging of functions
** Pros:
*** Supports ordered connections. Create 2 functions, make them visible as ports, make connections to them.
**** We can also have, e.g., a line joining the ports on the module to indicate they are part of a list.
**** Makes List module simpler
*** Connect to parameter in tuple
*** Functions that are visible on the module can connect to an actual function, and not just to the first one it finds.
*** Can replace operation modules (in python-wrapper) in some cases for, e.g., numpy.
** Cons:
*** Interface more complicated and crowded
*** More difficult for users to grasp?
*** No immediate use case
*** Makes no union type for tuple parameters a bigger problem.
 
* [TE] Publish user survey?
** No response from vistrails release yet
** Not announced on vistrails-users yet.
 
=== May 4, 2016 ===
'''Updates'''
'''Updates'''
* [RR] Test skipping whitelist ([https://github.com/VisTrails/VisTrails/pull/1069 #1069]) -- low priority
* VisTrails 2.2.4 released
* [RR] Custom matplotlib modules can't be compatible with both 2.1 and 2.2 ([https://github.com/VisTrails/VisTrails/issues/1067 #1067]); should be fixed for ALPS ([https://github.com/VisTrails/VisTrails/issues/1070 #1070])


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] UV-CDAT [https://github.com/UV-CDAT/uvcdat/issues/1275 needs] [https://github.com/VisTrails/VisTrails/pull/1073 #1073], please take a look
* [TE] Union type [https://github.com/VisTrails/VisTrails/issues/1172 #1172]
* [RR] Subworkflow issues
** [https://github.com/VisTrails/VisTrails/issues/1065 #1065]: missing attribute (fixed)
** [https://github.com/VisTrails/VisTrails/issues/1066 #1066]: groups in subworkflows were ignored when finding dependencies (fixed)
** [https://github.com/VisTrails/VisTrails/issues/725 #725]: "upgrade subworkflow" button not popping up (fixed); also, namespace issue
** [https://github.com/VisTrails/VisTrails/issues/1071 #1071]: subworkflows don't go through upgrades
* [RR] [https://github.com/VisTrails/VisTrails/issues/1074 #1074]: can't load and edit a single pipeline if upgrade happen


=== May 7, 2015 ===
=== April 27, 2016 ===
'''Updates'''
'''Updates'''
* [RR] Export/import workflow to Python working!


'''Items to Discuss'''
'''Items to Discuss'''
* [Claudio] UV-CDAT
* [TE] Wrapping Bokeh
** The UV-CDAT project is the biggest user base of VisTrails
** New method type "operation"
** VisTrails package management provides a lot of friction towards people plugging in their code
*** Transforms Figure->Glyph->Output into Glyph->Figure->Output
** Need to make it easy to integrate your random Python scripts in the system without having to deal with all the boilerplate, at least in the first step
**** Glyph sets function name and arguments as output
** [RR] argues that modules are still good; UV-CDAT shouldn't move towards a purely script-based backend
***** Not serializable, but should always be computed together with the subject of the operation.
** [RR] export/import with Python could reduce a lot of that friction by allowing 1) to edit workflow as Python 2) to open up boxes automatically if needed code doesn't match actual modules
**** Figure applies Glyph operation on itself
** ...
*** Useful for matplotlib?
**** matplotlib currently find actors by searching upstream?
**** But this is more difficult since matplotlib is not function-based.
** New "union" port type
*** Turns "x(float), x(list)" into "x (float, list)" and uses first set value
**** Uses only first value in tuple
**** Bokeh have many properties that support (list, string, Float)
*** Does not work with depth=1 types (e.g. Float of depth 1)
**** Turn Depth 1 types with known type into lists?


=== April 29, 2015 ===
* [TE] New bugfix release
** Finalize survey
 
=== April 20, 2016 ===
'''Updates'''
'''Updates'''
* Merged upgrade fixes
** Now has infinite loop test
** loop test now correctly loops 5 times
*** remap_module used wrong (current) package version when creating ModuleDescriptor
* Fixed multi-step group upgrades (PR: [https://github.com/VisTrails/VisTrails/issues/1168 #1168])


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] <strike>Abstractions</strike> subworkflows status ([https://github.com/VisTrails/VisTrails/labels/subworkflows tickets])
* New bugfix release
* [RR] matplotlib compatibility (2.1 & 2.2), [https://github.com/VisTrails/VisTrails/issues/1067 #1067]
** Merge usagestats
** RR to try and fix ALPS matplotlib modules
** Need to finalize survey


=== April 22, 2015 ===
=== April 13, 2016 ===
'''Updates'''
'''Updates'''
* 2.2.0 has been released!
* Windows issue (via email from Ryan)
** issue with manifest file (may be a new file in VTK6?)
** Tommy has regenerated new Windows builds
* Binaries, pypi, and conda released
* [RR] Export as script
* Python sources using VTK need to switch to SetInputData (users should be aware of this)


=== April 15, 2015 ===
'''Items to Discuss'''
'''Updates'''
* [TE] Chaining upgrades done ([https://github.com/VisTrails/VisTrails/pull/1164 #1164])
* Ready for 2.2.0 (apart from binary/deps issues)
** Replace "Upgrade" description annotation with "upgraded_from" annotation to identify which tags to hide?
** Missing some libs (scikit-learn, tej, tdparser, SQLAlchemy+connectors
 
** Windows: runvistrails.py is no longer used, so the PATH is wrong
* [TE] Iterating handle_invalid_pipeline ([https://github.com/VisTrails/VisTrails/pull/1165 #1165])
** Windows: pip is broken, but it probably wouldn't work anyway because of permission issues (disable this?)
** Not based on [https://github.com/VisTrails/VisTrails/tree/chain-upgrades-loop chain-upgrades-loop]
* Queries, upgrades and getPipeline() usage ([https://github.com/VisTrails/VisTrails/issues/1054 #1054])
** Cherry-pick test to preserve source?
** Getting a pipeline with getPipeline() is not safe: it might return an invalid pipeline
** Need maxPipelineFixAttempts option?
** This is used in many places throughout the code, like queries
*** The code is now smarter about recursion, so max attempts will "probably" never be reached.
** Upgrading would require going through the controller, but that creates new actions
** Need [https://github.com/VisTrails/VisTrails/commit/0ef0667426937eddb1d1c1e397f0657ffec039a9 debug messages]?
* [TC] Avoid copying a module's output if it's used as input by exactly one downstream module ([https://github.com/VisTrails/VisTrails/issues/1060 #1060]) (useful for big numpy arrays you can update in-place)
*** Would need to be moved into handle_invalid_pipeline


=== April 8, 2015 ===
=== April 6, 2016 ===
'''Updates'''
'''Updates'''
* [DK] Merged RR's changes for output modules (1012 and 1013)
* [TE] Query View improvements
** RR will merge remaining changes, then create v2.2 branch!
** Done except for displaying "Version Info" and #1164
* [RR] Working on finishing new interpreter (finally!)


'''Items to Discuss'''
'''Items to Discuss'''
* BNL need numpy array to VTK image
* [TE] Chaining upgrades ([https://github.com/VisTrails/VisTrails/pull/1164 #1164])
** Looks like VTK has some helpers for this
** Try latest upgrade first, then previous.
** We will help if issues arise
** If all fail, select latest upgrade?
** Will contribute back to VisTrails package
* Upgrade issue: [https://github.com/VisTrails/VisTrails/issues/1017 #1017]
** Automatic upgrades should happen between versions of provided upgrades
** Our existing upgrades work around this so it doesn't need to be 2.2.0
* Corner-case VTK modules
** No longer need VTKCell input port, so don't interfere with registry and API anymore
** Still work weirdly, people probably shouldn't use them
** But we have lots of clunky modules since we wrap the whole of VTK; some people might rely on this and know how to use them, let's keep them anyway
** Ready for 2.2.0


=== April 1, 2015 ===
=== March 30, 2016 ===
'''Updates'''
'''Updates'''
* [RR] UV-CDAT: bugfixing for 2.2, long-term plans: implement scripting import/export in VisTrails, port to UV-CDAT
* Possibly, try to move to regular VisTrails to use new features


'''Items to Discuss'''
'''Items to Discuss'''
* 2.2 release: nothing much is pending anymore, release next week?
** [TE] vtkExporter classes [https://github.com/VisTrails/VisTrails/issues/1032 #1032]
** [RR] Hiding upgrades in version tree might make it (or might be 2.2.1 so we can test it out) [https://github.com/VisTrails/VisTrails/issues/949 #949]
** Output modules changes to go in
* add note to documentation about order of parameters in VTK
* add issue about exporter upgrades if not already there


=== March 25, 2015 ===
* [TE] Query View improvements
** Unified do_version_switch and get_upgrades as validate_version()
** Problems with query view using its own controller
*** Fixed module info not being displayed for query results
*** Still no version info for query results
*** Still an issue with version query view not being updated
 
=== March 23, 2016 ===
'''Updates'''
'''Updates'''


'''Items to Discuss'''
'''Items to Discuss'''
* 2.2 release
* [RR] Usage reporting almost ready to go
** Checklist on Github: https://github.com/VisTrails/VisTrails/wiki/2.2-Release-Checklist
** Need to record whether specific features are used: paramexpore, mashup, query
** Review output modules
*** [DK] Record if LaTeX extension is used? But hard to distinguish from direct batch invocation
** RR has a couple more issues to fix
** How to record size of vistrail?
** Ready to go -- sign app package for OSX? [https://github.com/VisTrails/VisTrails/issues/984 #984] We need access to the Apple Membership team
*** [DK] IdScope already walks over vistrail, use that
*** but total number of modules and versions doesn't give an idea of average size of individual pipelines


=== March 18, 2015 ===
=== March 16, 2016 ===
'''Updates'''
'''Updates'''
* [TE] VTK6 works


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] Release v2.1.5 with backported tabledata?
* [TE] Upgrades in Query Mode
** MTA example needs updated tabledata (for JoinTables)
** Now using code similar to do_version_switch
** Google Maps package still not available
*** Uses handle_invalid_pipeline
* [RR] Work torward v2.2.0?
*** Differences: Not using current_pipeline, flushes changes
** changes:
*** New controller method get_pipeline optimized using cached pipelines (but not current_pipeline)
*** new persistence
*** Integrate to avoid repeated code?
*** API changes
*** Use this for query mode?
*** output module changes (upgrades?), maintain cells but try to upgrade
* [TE] VisTrails 2.2.4 ready for release?
*** not wrapping stuff
** tej package updated. Others?
*** VTK6? yes
* [JF] upgrades and the version tree
*** JobSubmission stuff?
* [JF] provenance in Jupyter
*** relabeling for upgrades [https://github.com/VisTrails/VisTrails/issues/949 #949]
* [DK] bundles: [https://github.com/VisTrails/VisTrails/pull/1092 #1092]
** makes sense, needs the tree view code to be updated, check selection
** See [https://github.com/VisTrails/VisTrails/wiki/2.2-Release-Checklist 2.2 checklist]
* Discussion of [https://github.com/VisTrails/VisTrails/issues/1016 #1016]
** plumbing between outputs and output modes, how to define a mode that works for many outputs without writing for each output?


=== March 11, 2015 ===
=== March 9, 2016 ===
'''Updates'''
'''Updates'''
* [RR] persistent_archive done; merge? ([https://github.com/VisTrails/VisTrails/pull/755 #755])
** note about the focus events for widgets
** TE be aware of file_archive for future binaries that include persistent_archive
* [TE] [https://github.com/VisTrails/VisTrails/pull/998 New VTK package] finished


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] Unmark UV-CDAT/VisTrails as a fork of VisTrails/VisTrails? (see last week; decision needed)
* [TE] Fixing search mode
** RR email to JF about this
** String query now matches all by default
** yes; email sent to Github
*** This caused pipeline queries to never match
* [RR] Switching order of output ports ([https://github.com/VisTrails/VisTrails/pull/1006 #1006])
** String query can search: User/Notes/Tagname/Time/Module name
** added port specs are sorted at a separate spot (Module.*_port_specs properties) than those in the registry (which are sorted in the registry), but those two lists are just combined without respect to sort keys
*** Should we search module names by default? (Disabled by default because it is expensive)
** need to determine whether the two lists should be merged or remain distinct
*** Fixed notes search
** should make sure that order of input ports and output ports makes parallel connections for things with same order
** '>' parameter queries in documentation but has been removed
** DK suggests breaking backward compatibility here: workflows still run, can fix easily if a problem in an existing package.
** Fixed module matches for upgraded pipelines (By not upgrading pipeline)
* [RR] Question about output modes ([https://github.com/VisTrails/VisTrails/pull/1007 #1007]), how to integrate in API ([https://github.com/VisTrails/VisTrails/pull/24 #24])
*** Upgrades still a problem
** Should ImageFileMode be removed? ("image" is not a mode, "file" is)
*** Add "Upgrade all menu option?" (Or upgrade all on open when `hideUpgrades`)
** ImageOutput missing?
*** [JF] Allow search on past tags
** Feel free to change how formats works
* [TE] Test suite segfaults on Fedora 17 virtualbox. Install newer version? (Support ended in 2013)


=== March 4, 2015 ===
* [TE] Create new bugfix release
** Finish querying
** Path issue on windows
 
* [DK] Look into sqlalchemy and new bundle branches
 
=== March 2, 2016 ===
'''Updates'''
'''Updates'''
* [TE] VTK wrapper
* [TE] Fixed cache bug with port specs
** Works on VTK 5.10
* [TE] VisTrails Next
** Still need to test VTK 6
** Most packages now work
** New general wrappers for python functions and classes
** No qgis for Python 3


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] Unmark UV-CDAT/VisTrails as a fork of VisTrails/VisTrails?
** Always dereference symlinks? [https://github.com/VisTrails/VisTrails/issues/1146 #1146]
** When [http://i.imgur.com/UTY2qfg.png filing a pull request] from UV-CDAT/VisTrails, VisTrails/VisTrails is selected by default
** People keep forgetting to change the default ([https://github.com/VisTrails/VisTrails/pull/956 #956] [https://github.com/VisTrails/VisTrails/pull/968 #968] [https://github.com/VisTrails/VisTrails/pull/999 #999] [https://github.com/VisTrails/VisTrails/pull/1000 #1000] [https://github.com/VisTrails/VisTrails/pull/1003 #1003] [https://github.com/VisTrails/VisTrails/pull/1004 #1004] [https://github.com/VisTrails/VisTrails/pull/1005 #1005])
** Only way to change that is to not have it marked as a fork of VisTrails/VisTrails
** Github staff [https://gist.github.com/remram44/b364c24ef1e462ce6e2f can make that change for us]; should we do it?
** Juliana: comments on this? visibility vs. convenience/annoyance for developers
* [RR] What about [https://github.com/VisTrails/VisTrails/issues/991 #991]?


=== February 25, 2015 ===
=== February 23, 2016 ===
'''Updates'''
'''Updates'''
* [TE] Fixed PythonSource 100% CPU bug
* [TE] VisTrails Next
** Updated [http://opendap.co-ops.nos.noaa.gov/axis/webservices/wind/ NOAA Web Service] examples
*** Now uses REST service, tabledata, and Google Maps
*** Web Service replaced with DownloadFile


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] vtkviewcell for infovis support, can we unify with VTKCell?
* [RR] Couple of fixes are in for API, and tej&reprounzip on the Mac binary. Also new release of tej, and working on anonymous usage reports.
** need to test this
** New 2.2 release soon?
* [TE] vtk wrapping
* [RR] Anonymous usage reports
** Mostly finished
** Sends out info like number of modules & versions, packages used, Python & libs versions, execution time, specific features [https://github.com/VisTrails/VisTrails/pull/1154 #1154]
** VTK 5.10 produce incorrect results with old wrapping
* [JF] Bring in noWorkflow to track variable dependencies, for the considered Jupyter integration?
*** Old wrapper is based mostly on VTK 4
* noWorkflow - provenance for python scripts
*** Most vtk_examples affected
** Recent work on tracking dependencies
*** [http://www.vtk.org/Wiki/VTK/VTK_6_Migration/Replacement_of_SetInput]
* Also integrates ReproZip with Jupyter
*** should be able to upgrade from SetInput to SetInputData (need to drop GetOutput and replace with self ports)
** [http://mybinder.org mybinder]
*** can we change vtkInstance to just return self and not wrap things
*** Use with ReproZip to automatically build Jupyter notebook interfaces
** terminator example not working under 5.8?
* Daves comments on Jupyter integration
* How does VTK wrapping fit into general wrapping framework?
** It is possible to identify cell order on the server side
* [RR] new persistence package
** Not trivial to track order of cells on client side
* How does Galaxy workflows relate to VisTrails?
** Packaging in Galaxy is hard
** Galaxy for biomedical workflows, difficulty making it general
* Action items
** How difficult to track cell dependencies in Jupyter notebooks?
** Use noWorkflow to track cell dependencies?
** How difficult to modify mybinder to use ReproZip packages?


=== February 18, 2015 ===
=== February 17, 2016 ===
'''Updates'''
'''Updates'''
* [RR] New VisTrails API and IPython integration ([https://github.com/VisTrails/VisTrails/pull/24 #24])


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] VTK wrapping
* [TE] Fixed Group memory usage
** [https://gist.github.com/rexissimus/16b74693545b5e7c1035 Benchmarking vtk package]
** Modules in groups are supposed to be freed when done executing
*** Old: 24.7 seconds
*** Prevented by logger that stored references to the modules (fixed, now using id(module))
*** New: 10.5 seconds (Except first time that adds 8 sec)
*** Prevented by list iterator bug that stored list of modules on the 'self' port bug (fixed)
**** The parsing that calls is_abstract (that tries to instanciate all vtk classes) is now only run the first time.
* [TE] VisTrails Next
**** get_items_from_sigstring takes 2 seconds, maybe we can use a lookup dict for already computed sigstrings?
** Removed deprecated code
** Now using a general python function wrapper
*** Core imports that should be gui imports
*** VTK classes are wrapped into python function that does not depend on vistrails
*** GetInputFromPort etc.
*** VTK functions can be executed without vistrails
**** PythonSources will be upgraded
*** The spec maps functions into vistrails modules, but can also describe wrapping
*** Fixes for Python < 3
*** A general python function wrapper that supports
*** fixes for VTK < 6
**** kwarg inputs
** TODOs
**** single, list, dict outputs
*** Remove RemoteQ
**** callback for progress reporting
**** Port Hadoop to tej (Already have pbs)
**** temporary file generator for using FilePool
*** Merge package wrapper
**** optional output generation
*** Finish SQLAlchemy branch
*** Creating specs:
*** Finish new bundle branch
***** Create spec by hand
** [JF] Will contact Jeff and Matthias about moving to Python 3
***** Auto-create spec outline (TODO) and manually finish it
* [JF] Query by Example is broken
***** Dynamically create spec (VTK)
* [JF] VisTrails Data Cleaning Project
***** Implement documentation wrappers (Can use scikitlearn wrapper to wrap numpydoc) (TODO)
** Use VisTrails to process and explore task-specific data while keeping provenance.
***** Classes as bad functions needs to be wrapped in new functions before they are wrapped. This is different for each package.
** Remi's Idea
****** Classes is hard: Like VTK, and matplotlib. Scikit-learn does still not wrap classes
*** Use VisTrails as the backend in a Jupyter notebook
***** Spec diffing and patching could be done using code from matplotlib.
*** Overcome problems with executing cells in random order
** Still needs upgrades from old VTK package
**** Interesting research topic, but little interest has yet been noted
*** Is it possible to dynamically wrap functions, e.g, you see a SetFunc and just remove the 'Set' prefix. Or do you need to create a complete mapping?
*** Interesting to study how such a notebook would be used (Is there notebook usage data available?)
*** Impose restrictions to notebook cell boundaries
*** It will only work for functional operations
*** Can we fix, or detect, non-functional (mutating) operations?
*** Analyse code and data flow and see if it mutates data in unexpected ways?
*** Mutable operations can be created in many ways in Python
* Next meeting Tuesday 11:30


=== February 11, 2015 ===
=== February 10, 2016 ===
'''Updates'''
'''Updates'''
* Update from Friday's meeting
** discussed VisTrails internals
** discussed wrapping
*** xml discussion, hard to modify because tied to db code
*** TE has made it possible to add the schema-defined attributes to the intermediate representation
*** higher-level operations on the port specs
** make sure the simple case works
*** [JF] take a simple package with documentation and figure out what the base case for wrapping is


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] VTK wrapping
* VisTrails Next
** Dynamic loading works
** Test suite passes
** Reading XML is fast enough, but [https://gist.github.com/rexissimus/8272d3c776ccfa115d82 unserializing data is slow]
*** Python 3 less deterministic, module upgrade order random.
** Working on patterns for patching
** [RR] updating packages: Reprounzip (pushed), tej, persistent_archive, ...
** Matplotlib has many advanced patterns like argument ordering, nested arguments, alternateSpecs, output types.
** All of our packages should run fine :)
*** Having all this in a general wrapper might confuse users?
** VTK thumbnail comparison works
** [RR] Delay module (except for identifiers) until you need it---e.g. don't deal with port specs, etc. until necessary
*** Rendering bug on some systems
* Scripting Support [https://github.com/VisTrails/VisTrails/pull/950 #950]
**** QVTKCell now inherits QGLWidget
** [RR] Issue with getting code from modules
*** Old thumbnails had wrong height due to spreadsheetwindow being too small
** Design a simple solution
**** Fixed by regenerating thumbnails
** [JF] Couldn't you use modules as black boxes without conversion, just to call into modules/subworkflows easily from e.g. IPython?
*** Silenced deprecation messages when generating modules
*** [RR] This is a job for the API, and a very separate use case. See [https://github.com/VisTrails/VisTrails/pull/24 #24]
*** Many new classes in VTK 7
** Remove deprecated code
*** Core imports that should be gui imports
*** GetInputFromPort etc.
**** Will break existing PythonSources
**** Try to upgrade?
*** Old-style packages
**** Or only allow a new style, like __init__.py renamed to info.py? (merge with identifiers.py?)
***** Read info.py without importing package?
*** Fixes for Python < 3
*** Fixes for Qt < 5
*** fixes for VTK < 7
*** Remove self port?


=== February 4, 2015 ===
=== February 3, 2016 ===
'''Updates'''
'''Updates'''


'''Items to Discuss'''
'''Items to Discuss'''
* Wrapping
* [vistrails-users] [http://lists.vistrails.org/pipermail/vistrails-users/2016-January/000402.html Rendering a .pvd (ParaView) file?]
** Format to use? Currently XML (like current matplotlib)
*** JSON and YAML have simple "to python dictionary" methods
*** But don't stream
*** YAML a lot easier for humans
** [DK] vtk-new-package also changes parameter names, creates enumerations
*** intermediate schema needs to be extensible
*** packages will want to store there specific infos for compute() method generation
*** also might have specs-altering info, like matplotlib's alternateSpec
** representation to code , registry already has schema for some aspects
** [RR] We might want to see if Module subclasses can be created lazily
*** no need to create all the classes just to register them in the registry and never actually use most of them
*** future effort
* [RR] Where should VisTrails packages live?
** tej installs as 'vistrailspkg.tej', TE installed it as 'userpackages.tej'
** Currently, standard packages are 'vistrails.packages.', user packages are 'userpackages.' and packages loaded through pkg_resources might be anything
** [RR] Use 'vistrailspkg.' everywhere?
** Long-term effort to simplify package distribution/installation (and have VisTrails get them automatically?)


=== January 28, 2015 ===
* VisTrails Next
** All tests but thumbnail comparison passes
** Still issues with gui and more packages needs to be tested
** PythonSource and MplSource upgraded with lib2to3
** Keep contrib packages? Update?
** [https://blog.kitware.com/vtk-7-0-0/ VTK 7 is released]
*** Supports Python 3
*** Will hopefully get into conda and others soon
*** Deprecates a bunch of modules
 
* [https://travis-ci.org/VisTrails/VisTrails/builds/106743348 Travis builder] for VisTrails Next
** Runs!
** Uses conda
*** Many levels of requirements
**** apt packages
**** conda packages
**** python packages in requirements.txt
**** python packages in setup.py
*** Can probably drop conda. Default builder does not have Qt5, but beta builder do!
*** But useful if we want to use conda in our own build process.
** Lots of errors I do not get locally?
 
* [http://goo.gl/forms/Z4HBrwaBWL User Survey]
** Have you used any alternatives to vistrails?
*** Relevant? More options?
** How often do you use any of these particular features in VisTrails?
*** Add/Remove alternatives?
** How important would you rank the following potential improvements to VisTrails?
*** Add alternatives?
 
=== January 27, 2016 ===
'''Updates'''
'''Updates'''
* T. Caswell to come visit on Fri 6 to discuss wrapping work
* New interpreter
** Working prototype soon
** Looping not completely done (and port combination mode: pairwise/cartesian...)
** Need to integrate with VisTrails
*** Compatibility with existing modules
*** Use log controller
*** Want to cache at multiple levels (whole stream/single element of stream)
*** Non-runtime attributes of modules (cache check, automatic conversion check, constant from/to string)


'''Items to Discuss'''
'''Items to Discuss'''
* [TE] New VTK wrapping
* User Survey
** Current code by DK seems a good deal faster
 
** Generates XML that can be patched/tweaked, generates Python code from it, VisTrails only loads generated Python code
* ZMQ failing on windows (vistrails-users)
** RR would rather have VisTrails load intermediate representation (= XML) directly, wants to make sure this is not slower
 
** The goal is to turn the intermediate step into something generic that would be used for every wrapped package (vtk, numpy, matplotlib, sklearn, java) instead of each having its own
* [TE] [https://github.com/VisTrails/VisTrails/pull/1143 Python 3 branch]
** TC has its own code at [https://github.com/Nikea/VTTools/blob/master/vttools/wrap_lib.py github:VTTools] which parses numpy docstrings and generates modules, doesn't yet handle classes or persist anything
** Testsuite almost passes
* Web crawler
*** Failing are unicode filenames, some users guide examples, and thumbnail comparisons.
** Right now, TE starts jobs for "start crawler", "stop crawler", "install classifier"
** Fixed issues
** RR would rather have the crawling be a job as far as VisTrails and tej are concerned
*** Signatures are now bytes (convert to string to show in widget)
** The whole thing would be one pipeline: load examples, train classifier, start crawler [check for job, kill previous one, upload model, start processes], get snapshot, visualize
*** Cannot compare different types, e.g., (None < 1)
*** Need some support in tej and job submission system: long-running jobs, stop a job (wait for it to finish?), restart a job even though results are cached
**** PortSpec.depth and min/maxConn could be None. (Backport!)
**** cell.row could be None
*** Lots of unicode/bytes fixes to serializations
**** We have encryption implementations in the code! (keychain)
*** Lots of small fixes to package method differences
** Current issues
*** logging widget empty?
*** version tree signals messed up
*** provenance view legend icons black
*** Text do not fit in some widgets
*** VTK thumbnail comparison fails
**** VTK Cells have some faces in wrong direction?
****  Because running in VM?
** Installing on Ubuntu LTS/Latest Mint
*** Install latest matplotlib from pip
*** Install VTK 7.0.0rc2 from source
*** No QtWebEngine binary (controversial) (Must install sip/PyQt5/Qt5 from source)


=== January 21, 2015 ===
=== January 20, 2016 ===
'''Updates'''
'''Updates'''


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] Unified wrapping method discussion [https://github.com/VisTrails/VisTrails/issues/991 #991]
* [TE] Backporting features from Python 3 + PyQt5 + Qt5
** TE to work on reusable method with intermediate representation, starting with VTK
** Merged unicode with master ([https://github.com/VisTrails/VisTrails/tree/unicode unicode])
* [RR] Examples for scikit-learn: JF has an old example using Weka with parameter exploration (not currently in source tree)
*** One unicode test failing
** AM's examples are enough
*** Problem saving to xml
* [AM] scikit-learn package is done, merge it in? [https://github.com/VisTrails/VisTrails/pull/955#issuecomment-70286788 #955]
** Used [http://python-future.org/ python-future] to run futurize stage 1 to update legacy (pre 2.6) code ([https://github.com/VisTrails/VisTrails/tree/unicode-futurized unicode-futurized])
** RR will merge
*** Updates print to functions 'from __future__ import print_function'
* [RR] What should copyright headers say? [https://github.com/VisTrails/VisTrails/pull/994#issuecomment-70173935 #994]
*** Updates exception calls to use 'as'
** Let's keep everything in there: Utah/Poly/NYU
*** removes most usages of 'long' (mostly used unnecessarily)
**** Only needed for 32-bit support
*** Fixes relative imports (from __future__ import absolute_import)
** Fixing code that is deprecated in Qt 4.8 and removed in Qt 5 ([https://github.com/VisTrails/VisTrails/tree/unicode-futurized-qt5 unicode-futurized-qt5])
*** Updated all signals to new-style
* If we go 2 to 3, this could break packages
** means we should schedule any package format changes for the same time
** e.g., imports should be unrelated to code path (function to load module from package identifier?) (take them out of vistrails.* [https://github.com/VisTrails/VisTrails/pull/1002 #1002])
** any structural changes (e.g. the __init__ versus init thing) (RR thinks it makes sense, though having both named "init" is unfortunate)
** putting package identifier as xml?
*** Python not so bad, plus some stuff in there is Python code (checking dependencies)
** version the APIs?
*** RR planning on versioning vistrails_module.Module, no point versioning the whole package?
* file formats on 2 to 3:
** no real translation/upgrade, but non-ascii values that work on 3 won't load in 2


=== January 14, 2015 ===
=== January 13, 2016 ===
'''Updates'''
'''Updates'''
* [TE] Working on classifier
* [RR] Scripting integration, work in progress


'''Items to Discuss'''
'''Items to Discuss'''
* [RR] Unified wrapping method discussion ([https://github.com/VisTrails/VisTrails/issues/991 #991])
* [TE] [https://gist.github.com/rexissimus/dfd27e466427529c385c Porting to Python 3 / PyQt5]
** Let's talk next week, [AM] and [DK] are not here
** Basic GUI and execution works
** Minimal work to support 2to3
** Hard to support both PyQt4 and PyQt5


=== January 7, 2015 ===
=== January 6, 2016 ===
'''Updates'''
'''Updates'''
'''Items to Discuss'''
'''Items to Discuss'''
* make sure that we address critical issues, questions, and pending review branches in a timely manner
* Updating VisTrails dependencies
* scripting support
** Successfully built [https://gist.github.com/rexissimus/f1a1aada7de1c00a57c7 Win7-64/Python3/PyQt5/Qt5/WebEngine/VTK7]
** [RR] no issues if we want to just keep annotations in the generated code to allow the link back to a workflow
*** VTK 7 is the first supporting Python 3 but is only in release candidate phase.
** [RR] can translate from workflow to script, working on script to workflow
**** Next version of VTK 6 is rumored to support Python 3
** will work for parameter value changes, structural changes require changes to the annotations
**** There is a development branch of VTK 6 supporting Python 3
** need to publish best practices here
*** Can travis build this?
** would be cool to do looping in scripts (easier interface than with workflows)
**** We can skip tests for WebEngine and VTK if needed
* notebook support (convert form notebook to workflow)
** Python 3 [https://python3wos.appspot.com/ showstoppers]
** RR will sync with FC on this
*** No MySQL-python (sqlalchemy supports mysql through other drivers)
* Issue with console in built-from-scratch
*** No suds (there are active forks but we could also drop support?)
** [TC] iPython rearranged some of the completion stuff in 2.2 and 2.3
* Options for python2/3 support:
** binary has old version of iPython -> 1.0.0, should we update?
** Interpreter could be python2/python3 based on packages
* [TC] automated wrapping of numpy and scipy
** six layer works but not the easiest to maintain (e.g. in reprozip)
** discovered a bunch of malformed documentation in numpy and scipy
* Drop support for win-64
** has github repo for vistrails tools
* Update copyright headers to 2016
** example modules wrap a bunch of R stuff (not baked in, just how things are)
** will be pushing wrapping logic up
** port names forbidden (window and domain)
** have an import hook to get from yaml directly to VisTrails Modules
** should work for any python modules with well-formed numpy docstrings.
* [Action] should make it clear in documentation that Constant now means serializable not that the value doesn't change (e.g. List)
* [TC] might be interesting to try to build components of matplotlib and accumulate in figure (long-term project, but thinking about how this might work)
* [TE] build and build scripts
** completely automatic, buildbot
** need to set the build machines for the environment we want for the binary
** would virtualenv work here?
** [TC] anaconda can pin versions, potential path to test different configurations
** Q: upload nightly binary builds? A: makes sense, make sure they are well-labeled
* sourceforge stats: e.g. http://sourceforge.net/projects/vistrails/files/vistrails/nightly/vistrails-src-nightly.tar.gz/stats/timeline?dates=2014-01-01+to+2015-01-07
* package issues (see Remi's message)
* [TE] Scope of tej
** Support single ssh commands?
** Queue can be used as a remote machine (crawler is using queue.call*)
* SourceForge stats: http://sourceforge.net/projects/vistrails/files/vistrails/nightly/vistrails-src-nightly.tar.gz/stats/timeline?dates=2014-01-01+to+2015-01-07


== Older meetings ==
== Older meetings ==
* [[Development/2015]]
* [[Development/2014]]
* [[Development/2014]]
* [[Development/2013]]
* [[Development/2013]]

Latest revision as of 15:34, 30 October 2017

See also the Github wiki

2017

October 30, 2017

Updates

  • [DK] PyQt5
  • [RR] Running Python3 code

Items to Discuss

  • Installation:
    • Use conda? (macOS hack to have .app bundle load conda-installed vistrails)
    • Update conda recipe (pyqt4 restriction for now)
  • Interpreter
  • Release
  • Integration
    • hard to build same type of GUI in other apps that integrate core VisTrails (tend to use just the API)
    • independent pieces of the GUI could be reused if they were more independent.

September 6, 2017

Updates

  • [RR] Fixes for scikit-learn, tables, usagestats

Items to Discuss

  • Stripped-down version of VisTrails to showcase new features?
    • include meta-vistrail, bundles
    • hide mashups, extra widgets, latex mode, etc.
  • Interpreter

August 16, 2017

Updates

  • [DK] meta-vistrail
    • Working actions: normal action in vistrail, pruning version tree, tagging operations, and change
    • Interface

Items to Discuss

  • Notebook
  • Interpreter
  • Web visualization packages (e.g. bokeh)
  • Pipeline templates

August 2, 2017

Updates

  • [DK] meta-vistrail work
    • Extend Vistrail to MetaVistrail to support meta-actions
    • Vistrail becomes less tied to workflows so it can also supporting versioning vistrails

Items to Discuss

  • Interpreter
    • Using dask?
    • Streaming an issue
  • Notebooks
    • What is an output of a module? (need to expose a specific output port or the entire module)
    • Unifies some of the work from the script-workflow code

June 28, 2017

Updates

  • [DK] Testing UUID/SQLAlchemy branch
  • [DK] Working on meta-versions
    • would be nice to have pipeline and vistrail separate
    • [RR] Then do we only have meta-actions, any change to the pipeline is a meta-action that adds a version that does the change?
    • [DK] Yes?
  • [RR] Notebook interface (Vizier) making good progress, figuring out cell outputs

Items to Discuss

June 7, 2017

Updates

  • [DK] Merged UUID/SQLAlchemy branch with new bundle format branch, getting rid of the bugs

Items to Discuss

  • [RR] How to specify an "intermediate output" that should be presented to the user, from any module? (useful for notebook interface)
    • Can designate in module description an output port
    • Value has to be serializable
    • Should use the OutputModes work to handle multiple modes, configuration, selection, ...
  • [RR] Is VisTrails with SQL usable concurrently?
    • [DK] Probably not, demo from [TE] exists

May 10, 2017

Items to Discuss

  • Identifiers
  • Bundles & DB Code
  • Interpreter
  • Merge / Versioning Version Trees
  • Python3
  • Workings of List
  • Packages: Wrappers + new Versions (VTK7)
  • Script Conversion
  • Intermediate Outputs: reuse output module work?
    • would be useful for both workflows (run to a particular checkpoint)
    • and useful for notebook interfaces
  • SQL backend: does it allow for concurrent access?
    • Yes, real-time collaboration work for concurrent single vistrail access
    • Should be able to access different vistrails at once without issues

April 19, 2017

Updates

Items to Discuss

April 5, 2017

Updates

Items to Discuss

March 8, 2017

Updates

  • [RR] Added a looping indicator on modules #1217
    • This makes it easier to understand what's looping, no need to follow edges and count
  • [RR] Refactoring CLTools for integration in Docker package
  • [RR] Will try to refactor autogenerated package logic next (need to update TensorFlow package for TF 1.0, should really be using this)

Items to Discuss

  • [RR] Problem with vtkRendererToSpreadsheet output mode: does it's own ModuleConnector handling, interfering with looping/streaming logic, to add the module ID on the renderers #1216
    • Can we move this up to the renderer modules?
    • Thankfully RR couldn't find much of this madness in the rest of code (outside of controlflow and parallelflow)

February 24, 2017

Updates

  • [RR] Rich-text module documentation (#1210)
    • Went over packages and fixed format; maybe we should have a test to validate RST?
  • [RR] Single-instance shutdown with --remote-shutdown (#1204)
  • [RR] Bundle installation not super reliable; probably need to go in and add checks for every usual environment

Items to Discuss

  • [RR] There are issues with list-depth
    • Some VTK ports marked with depth=1 don't actually accept multiple inputs (vtkDataSetMapper)
    • Issue with looping groups

January 25, 2017

Updates


Items to Discuss

  • Scaling VisTrails
  • sql-alchemy, uuid, bundle branches/merges

January 11, 2017

Updates

  • [RR] New VisTrails version in Debian [1]

Items to Discuss

  • [RR] Collaboration with school of medicine to port HiC-bench to VisTrails
    • Have homemade workflow system based on R scripts and symlinks
      • Each steps has multiple sets of parameters
      • Submits PBS jobs for each step with each set of parameters, using PBS job metadata to wait on previous step
      • Gets all results in directory structure step3-parameters/step2-parameters/step1-parameters/files
    • VisTrails improves provenance capture and makes editing pipelines easier
      • Need better support for aggregation (groupby operation might be good enough; pandas?)

2016

December 14, 2016

Updates

  • [RR] Single-instance code: over-engineered, but will work
    • (Have to avoid race conditions on startup, and OSes offer very different locking primitives)

Items to Discuss

  • Email from Matt Dirks: combobox should work, ask for more code?
  • Email from marin.nl:
    • looks like they would benefit from new interpreter
    • how to store their consolidated provenance when they exchange .vt files around?

November 30, 2016

Updates

Items to Discuss

  • [RR] Working on single instance code for MARIN (#1205)
    • Remote shutdown ready (#1204)
    • Still improving it
    • Want to return something more structured to the client (success/fail code, stdout, stderr)
    • Should be usable without Qt
  • [DK] Shutting down VisTrails has issues: cleans up interpreter (to remove files) but also resets persistent pipeline for no reason
  • [DK] Working on batch execution using console_mode
  • [DK] Settings aliased parameters when using core.api?

November 16, 2016

Updates

  • [RR] Issue #1200 from @samtux: need to set PyQt to API version 2 before ever importing it; using require_pyqt_api2() does that (also can install bundle)

Items to Discuss

  • Email from Pieter: executing pipelines with parameters from command-line using single-instance
    • Seems to work, main instance gets full command-line and alters configuration temporarily
    • Not sure what his error is (VisTrails returns little information in a lot of cases); though execution error should return something more meaningful
    • Actions:
      • Can add switch to kill main instance
      • Can improve single-instance code to return more meaningful errors + machine-readable output from "client" VisTrails
      • Add client/server code to core that doesn't use Qt? Also need a run.py-line entrypoint that doesn't use gui (calls console mode like gui.application.VistrailsApplicationSingleton#noninteractiveMode())?

November 2, 2016

Updates

  • New version 2.2-2 of Debian package, still wrong copyright, and broken bundle installation
    • Finally replied, says copyright issue will be fixed soon, working on including VisTrails 2.2.4 for Debian Stretch
  • Working on Docker package, low hanging fruit because we have CLTools, and useful for some workflow (also step towards CWL support)

Items to Discuss

October 5, 2016

Items to Discuss

  • working toward a 3.0 release; project board
    • unique ids
    • bundles
    • GUI fixes
    • wrapping updates
    • python3
    • interpreter?
  • command-line input parameters to provenance
    • [DK] we don't create a persisted workflow from those input params, i think
    • [DK] these are already defined as aliases so we treat them differently form a normal input param
    • [DK] still have the potential problem of allowing a user to view the workflow as it was run with a given set of aliases
    • Do the vistrails variables values get stored in provenance? (what if values change?)

September 14, 2016

Updates

Items to Discuss

August 31, 2016

Updates

  • [RR] Went over vgc.poly.edu/vistrails.org config:
    • Added TLS certificate (vistrails.org, www.vistrails.org, lists.vistrails.org, vgc.poly.edu and a few others)
    • Fixed usersguide scripts (won't disappear again)
    • Moved some websites over to HTTPS
    • Websites
  • [RR] users' guide on readthedocs: doesn't seem like we can have both the internal docs (currently there) and users' guide under the same RTD "project"
  • [DK] UUID support almost complete (use-uuid branch), bundle translation then fits more easily on top of that

Items to Discuss

  • [RR] Move www.vistrails.org (wiki) to HTTPS? There is a trac at https://www.vistrails.org/
    • Get rid of more services? (svn, trac, ...)
  • [RR] Notebook execution works. How do we support more languages (than Python)?
    • Need: detection, metadata reader, code to input values
  • [RR] ALPS and VisTrails 2.1 issue: should be using 2.2?

August 17, 2016

Updates

  • [TE] Fixed parameter order upgrade bug that breaks VTK examples.
  • [TE] Matplotlib and sklearn are exportable using module-to-script api
  • [TE] Need to add to_python_script to pythonfunction.py to get bokeh and numpy export working.

Items to Discuss

  • Version checks: Please use a method instead of hard-coded `try: int(v) except ValueError: ...` logic!
  • Mashups: why do they share the same id scope?? (see MashupsManager.createMashupController)
  • [TE] Wrap-up notes

August 10, 2016

Updates

Items to Discuss

  • [TE] Python Wrapper and scripting
    • All changes merged into python-wrapper branch
      • Tests pass
      • Still need to update sub-branches
    • Minor fixes
      • vtkPlot3DReader upgrade bug
      • Added tuple exporting
    • Most of vtk examples can be exported example
      • Sometimes connections are wrong, executing workflow sometimes works, otherwise copy/pasting is necessary
        • Could be a bug in the old vistrail, but not sure
  • [DK] Subworkflows and uuids

August 3, 2016

Updates


Items to Discuss

  • [TE] Wrapper patches now stored as python code
    • Connection variables now lowercase
    • Can we use code as output variables?
      • E.g. "vtk_dataset_mapper.GetOutput(0)"
      • Could mutate output when output method is only supposed to be called once
      • Need to be able to rename output port as python code(e.g. when there are 2 "vtk_dataset_mapper"s)

July 27, 2016

Updates

  • [DK] DB bundle serialization implemented

Items to Discuss 

   def vtkInstance():
       self.vtkInstance = self

July 20, 2016

Updates

Items to Discuss

  • [TE] New patch method for python-wrapper example
    • A patch is a string template with self/input/output variables for patching a class method
    • Patches are stored in xml specification
    • Patches are assigned to methods in ClassSpec's
    • Used both for execution in vistrails and when exporting as script
      • Executed with "exec" when run in vistrails
      • Turns patches into natural calls in script
    • Wrapping VTK library no longer needed
      • Removes ".vtkInstance" (Automatically removed from PythonSources and vtkInteractionHandlers)
    • Removed fix_classes.py (Subclassing of VTK classes to patch methods directly)
    • Also used for port translations (With patch names like "basic:Color#input") (No more ugly input_t method definitions)
    • TODO's
      • Add to export_as_script
      • Patch Modules that represent Python functions as well
  • [vistrails-users] Read data from SQL example?

July 13, 2016

Updates

  • [DK] bundles on sql-alchemy branch
    • Bundle, BundleMapping, and BundleSerializer
    • New BaseSerializers to deal with versions of directory, zip, db serializers
    • Can register the BundleSerializers with the base serializers
    • Translation between bundle versions
    • Bundle.add_object "just works" if an appropriate mapping was registered

Items to Discuss

  • [TE] Simplified running module using API for scripting example
    • API Module can be executed using compute method
      • Takes list of outputs to compute + inputs as keyword arguments
  • Status of general cell synchronization (vistrails-users)

July 6, 2016

Updates

  • [DK] Working on bundles

Items to Discuss

  • [TE] Using vistrails API in scripting example 1 (API with VTK) example 2 (DownloadFile only)
    • Call module in script using vistrails API
    • Can be used when no export method is defined.
  • [TE] Server news bug Critical?
    • [RR] No, unreleased
  • [DK] New bundle organization
    • BundleMapping contains individual mappings from raw objects to BundleObj
    • Must be separate in order to have in-memory, separate from serializer settings

June 29, 2016

Updates

Items to Discuss

  • [TE] Export VTK as python script
    • Works on Terminator (Isosurface, Volume Rendering, clipping plane, combined rendering) example
    • Preludes (imports) still need improvements
    • Works with vtkInteractionHandler (clipping plane)
    • Resulting clipping plane is incorrect? (supposed to hide one side of the plane)
    • vtkRendererOutput Uses VTKRenderWindow as output
      • Should support different output modes?
      • Does not work with multiple outputs (Next cell is displayed when current is closed)
      • Uses wrapped vtkInstance (as vvtk)
        • Create new patch system with code that can be used both in vistrails and in a python script?

June 22, 2016

Updates

Items to Discuss

  • [TE] Fix for upgraded analogies (PR #1177)
    • Uses module location to find module remap (The best we can do right now?)
    • Also fixes remapped port names for connections to existing modules
    • May still fail on complex upgrades like adding a function on an upgraded module that has a different port name
  • [TE] Working on exporting wrapped libraries (VTK)

June 15, 2016

Updates

  • [TE] Added depth logic to python script exporter (full commit)
    • Fully implements connection merging and list looping

Items to Discuss

  • [TE] Making analogy work on upgraded workflows (#1175)
    • Analogy only works We need to use the non-upgraded action chain
    • But pipelines need to be valid (matcher uses module portspecs)
    • Tried to get upgrade remap from upgrade action, but this seems impossible
    • Use module location instead?
      • Location should be identical for one-to-one module upgrades

June 1, 2016

Updates

  • VisTrails 2.2.4 announced (finally)
    • 5 survey replies
    • 47 downloads last week

Items to Discuss

  • [TE] Export VTK as script (python-wrapper)
    • to_python_script
      • needs the pipeline (or at least the connections)
        • Should not generate code for any possible VTK method (exporter detects which ports is used in the source)
        • VTK needs to know connection order
        • Adding functions directly to the script results in nicer code
    • Add support for multiple input connections
    • Add support for list looping

May 25, 2016

Updates

  • Mailing-list fixed
  • Getting stats from the "server news" mechanism (via parser)

Items to Discuss

  • [RR] Alexis doing writeup on VisTrails, curious about interesting streaming use-cases (and potential future users)
  • [TE] Union ports
    • Show union ports in pipeline (DEMO)

May 18, 2016

Items to Discuss

  • [TE] mailing list still down - Julio working on it
  • [TE] Improved union port
    • New schema 1.0.5 adds portitem.union string attribute
    • Works with pipeline view, parameter exploration view, and mashup view
    • Should work well for matplotlib
    • Use with VTK ports?
      • It uses [item_1,item_2] style ports usually with different tuple length.
  • [TE] Remove emacs dependency from db generate #1173

May 11, 2016

Items to Discuss

  • [TE] Union type #1172
    • GUI-based solution Branch union-port Demo?
      • Shows single port for all ports with same sort_key
      • Select specific type when adding/showing
      • Only one type should be visible on the module at any time
      • Making tuple parameters union types is probably too complicated
      • Should work with alternate specs like matplotlib (if sort_key is defined correctly)
  • [TE] Feature suggestion: Let connections connect to functions/parameters
    • Show functions and parameters as ports and toggle port visibility directly for functions and parameters
    • Use separate views for ports and functions (like before)
      • Allow rearranging of functions
    • Pros:
      • Supports ordered connections. Create 2 functions, make them visible as ports, make connections to them.
        • We can also have, e.g., a line joining the ports on the module to indicate they are part of a list.
        • Makes List module simpler
      • Connect to parameter in tuple
      • Functions that are visible on the module can connect to an actual function, and not just to the first one it finds.
      • Can replace operation modules (in python-wrapper) in some cases for, e.g., numpy.
    • Cons:
      • Interface more complicated and crowded
      • More difficult for users to grasp?
      • No immediate use case
      • Makes no union type for tuple parameters a bigger problem.
  • [TE] Publish user survey?
    • No response from vistrails release yet
    • Not announced on vistrails-users yet.

May 4, 2016

Updates

  • VisTrails 2.2.4 released

Items to Discuss

April 27, 2016

Updates

Items to Discuss

  • [TE] Wrapping Bokeh
    • New method type "operation"
      • Transforms Figure->Glyph->Output into Glyph->Figure->Output
        • Glyph sets function name and arguments as output
          • Not serializable, but should always be computed together with the subject of the operation.
        • Figure applies Glyph operation on itself
      • Useful for matplotlib?
        • matplotlib currently find actors by searching upstream?
        • But this is more difficult since matplotlib is not function-based.
    • New "union" port type
      • Turns "x(float), x(list)" into "x (float, list)" and uses first set value
        • Uses only first value in tuple
        • Bokeh have many properties that support (list, string, Float)
      • Does not work with depth=1 types (e.g. Float of depth 1)
        • Turn Depth 1 types with known type into lists?
  • [TE] New bugfix release
    • Finalize survey

April 20, 2016

Updates

  • Merged upgrade fixes
    • Now has infinite loop test
    • loop test now correctly loops 5 times
      • remap_module used wrong (current) package version when creating ModuleDescriptor
  • Fixed multi-step group upgrades (PR: #1168)

Items to Discuss

  • New bugfix release
    • Merge usagestats
    • Need to finalize survey

April 13, 2016

Updates

Items to Discuss

  • [TE] Chaining upgrades done (#1164)
    • Replace "Upgrade" description annotation with "upgraded_from" annotation to identify which tags to hide?
  • [TE] Iterating handle_invalid_pipeline (#1165)
    • Not based on chain-upgrades-loop
    • Cherry-pick test to preserve source?
    • Need maxPipelineFixAttempts option?
      • The code is now smarter about recursion, so max attempts will "probably" never be reached.
    • Need debug messages?
      • Would need to be moved into handle_invalid_pipeline

April 6, 2016

Updates

  • [TE] Query View improvements
    • Done except for displaying "Version Info" and #1164
  • [RR] Working on finishing new interpreter (finally!)

Items to Discuss

  • [TE] Chaining upgrades (#1164)
    • Try latest upgrade first, then previous.
    • If all fail, select latest upgrade?

March 30, 2016

Updates

Items to Discuss

  • [TE] Query View improvements
    • Unified do_version_switch and get_upgrades as validate_version()
    • Problems with query view using its own controller
      • Fixed module info not being displayed for query results
      • Still no version info for query results
      • Still an issue with version query view not being updated

March 23, 2016

Updates

Items to Discuss

  • [RR] Usage reporting almost ready to go
    • Need to record whether specific features are used: paramexpore, mashup, query
      • [DK] Record if LaTeX extension is used? But hard to distinguish from direct batch invocation
    • How to record size of vistrail?
      • [DK] IdScope already walks over vistrail, use that
      • but total number of modules and versions doesn't give an idea of average size of individual pipelines

March 16, 2016

Updates

Items to Discuss

  • [TE] Upgrades in Query Mode
    • Now using code similar to do_version_switch
      • Uses handle_invalid_pipeline
      • Differences: Not using current_pipeline, flushes changes
      • New controller method get_pipeline optimized using cached pipelines (but not current_pipeline)
      • Integrate to avoid repeated code?
      • Use this for query mode?
  • [TE] VisTrails 2.2.4 ready for release?
    • tej package updated. Others?
  • [JF] upgrades and the version tree
  • [JF] provenance in Jupyter
  • [DK] bundles: #1092

March 9, 2016

Updates

Items to Discuss

  • [TE] Fixing search mode
    • String query now matches all by default
      • This caused pipeline queries to never match
    • String query can search: User/Notes/Tagname/Time/Module name
      • Should we search module names by default? (Disabled by default because it is expensive)
      • Fixed notes search
    • '>' parameter queries in documentation but has been removed
    • Fixed module matches for upgraded pipelines (By not upgrading pipeline)
      • Upgrades still a problem
      • Add "Upgrade all menu option?" (Or upgrade all on open when `hideUpgrades`)
      • [JF] Allow search on past tags
  • [TE] Create new bugfix release
    • Finish querying
    • Path issue on windows
  • [DK] Look into sqlalchemy and new bundle branches

March 2, 2016

Updates

  • [TE] Fixed cache bug with port specs
  • [TE] VisTrails Next
    • Most packages now work
    • No qgis for Python 3

Items to Discuss

    • Always dereference symlinks? #1146

February 23, 2016

Updates

  • [TE] Fixed PythonSource 100% CPU bug
  • [TE] VisTrails Next
    • Updated NOAA Web Service examples
      • Now uses REST service, tabledata, and Google Maps
      • Web Service replaced with DownloadFile

Items to Discuss

  • [RR] Couple of fixes are in for API, and tej&reprounzip on the Mac binary. Also new release of tej, and working on anonymous usage reports.
    • New 2.2 release soon?
  • [RR] Anonymous usage reports
    • Sends out info like number of modules & versions, packages used, Python & libs versions, execution time, specific features #1154
  • [JF] Bring in noWorkflow to track variable dependencies, for the considered Jupyter integration?
  • noWorkflow - provenance for python scripts
    • Recent work on tracking dependencies
  • Also integrates ReproZip with Jupyter
    • mybinder
      • Use with ReproZip to automatically build Jupyter notebook interfaces
  • Daves comments on Jupyter integration
    • It is possible to identify cell order on the server side
    • Not trivial to track order of cells on client side
  • How does Galaxy workflows relate to VisTrails?
    • Packaging in Galaxy is hard
    • Galaxy for biomedical workflows, difficulty making it general
  • Action items
    • How difficult to track cell dependencies in Jupyter notebooks?
    • Use noWorkflow to track cell dependencies?
    • How difficult to modify mybinder to use ReproZip packages?

February 17, 2016

Updates

Items to Discuss

  • [TE] Fixed Group memory usage
    • Modules in groups are supposed to be freed when done executing
      • Prevented by logger that stored references to the modules (fixed, now using id(module))
      • Prevented by list iterator bug that stored list of modules on the 'self' port bug (fixed)
  • [TE] VisTrails Next
    • Removed deprecated code
      • Core imports that should be gui imports
      • GetInputFromPort etc.
        • PythonSources will be upgraded
      • Fixes for Python < 3
      • fixes for VTK < 6
    • TODOs
      • Remove RemoteQ
        • Port Hadoop to tej (Already have pbs)
      • Merge package wrapper
      • Finish SQLAlchemy branch
      • Finish new bundle branch
    • [JF] Will contact Jeff and Matthias about moving to Python 3
  • [JF] Query by Example is broken
  • [JF] VisTrails Data Cleaning Project
    • Use VisTrails to process and explore task-specific data while keeping provenance.
    • Remi's Idea
      • Use VisTrails as the backend in a Jupyter notebook
      • Overcome problems with executing cells in random order
        • Interesting research topic, but little interest has yet been noted
      • Interesting to study how such a notebook would be used (Is there notebook usage data available?)
      • Impose restrictions to notebook cell boundaries
      • It will only work for functional operations
      • Can we fix, or detect, non-functional (mutating) operations?
      • Analyse code and data flow and see if it mutates data in unexpected ways?
      • Mutable operations can be created in many ways in Python
  • Next meeting Tuesday 11:30

February 10, 2016

Updates

Items to Discuss

  • VisTrails Next
    • Test suite passes
      • Python 3 less deterministic, module upgrade order random.
    • [RR] updating packages: Reprounzip (pushed), tej, persistent_archive, ...
    • All of our packages should run fine :)
    • VTK thumbnail comparison works
      • Rendering bug on some systems
        • QVTKCell now inherits QGLWidget
      • Old thumbnails had wrong height due to spreadsheetwindow being too small
        • Fixed by regenerating thumbnails
      • Silenced deprecation messages when generating modules
      • Many new classes in VTK 7
    • Remove deprecated code
      • Core imports that should be gui imports
      • GetInputFromPort etc.
        • Will break existing PythonSources
        • Try to upgrade?
      • Old-style packages
        • Or only allow a new style, like __init__.py renamed to info.py? (merge with identifiers.py?)
          • Read info.py without importing package?
      • Fixes for Python < 3
      • Fixes for Qt < 5
      • fixes for VTK < 7
      • Remove self port?

February 3, 2016

Updates

Items to Discuss

  • VisTrails Next
    • All tests but thumbnail comparison passes
    • Still issues with gui and more packages needs to be tested
    • PythonSource and MplSource upgraded with lib2to3
    • Keep contrib packages? Update?
    • VTK 7 is released
      • Supports Python 3
      • Will hopefully get into conda and others soon
      • Deprecates a bunch of modules
  • Travis builder for VisTrails Next
    • Runs!
    • Uses conda
      • Many levels of requirements
        • apt packages
        • conda packages
        • python packages in requirements.txt
        • python packages in setup.py
      • Can probably drop conda. Default builder does not have Qt5, but beta builder do!
      • But useful if we want to use conda in our own build process.
    • Lots of errors I do not get locally?
  • User Survey
    • Have you used any alternatives to vistrails?
      • Relevant? More options?
    • How often do you use any of these particular features in VisTrails?
      • Add/Remove alternatives?
    • How important would you rank the following potential improvements to VisTrails?
      • Add alternatives?

January 27, 2016

Updates

  • New interpreter
    • Working prototype soon
    • Looping not completely done (and port combination mode: pairwise/cartesian...)
    • Need to integrate with VisTrails
      • Compatibility with existing modules
      • Use log controller
      • Want to cache at multiple levels (whole stream/single element of stream)
      • Non-runtime attributes of modules (cache check, automatic conversion check, constant from/to string)

Items to Discuss

  • User Survey
  • ZMQ failing on windows (vistrails-users)
  • [TE] Python 3 branch
    • Testsuite almost passes
      • Failing are unicode filenames, some users guide examples, and thumbnail comparisons.
    • Fixed issues
      • Signatures are now bytes (convert to string to show in widget)
      • Cannot compare different types, e.g., (None < 1)
        • PortSpec.depth and min/maxConn could be None. (Backport!)
        • cell.row could be None
      • Lots of unicode/bytes fixes to serializations
        • We have encryption implementations in the code! (keychain)
      • Lots of small fixes to package method differences
    • Current issues
      • logging widget empty?
      • version tree signals messed up
      • provenance view legend icons black
      • Text do not fit in some widgets
      • VTK thumbnail comparison fails
        • VTK Cells have some faces in wrong direction?
        • Because running in VM?
    • Installing on Ubuntu LTS/Latest Mint
      • Install latest matplotlib from pip
      • Install VTK 7.0.0rc2 from source
      • No QtWebEngine binary (controversial) (Must install sip/PyQt5/Qt5 from source)

January 20, 2016

Updates

Items to Discuss

  • [TE] Backporting features from Python 3 + PyQt5 + Qt5
    • Merged unicode with master (unicode)
      • One unicode test failing
      • Problem saving to xml
    • Used python-future to run futurize stage 1 to update legacy (pre 2.6) code (unicode-futurized)
      • Updates print to functions 'from __future__ import print_function'
      • Updates exception calls to use 'as'
      • removes most usages of 'long' (mostly used unnecessarily)
        • Only needed for 32-bit support
      • Fixes relative imports (from __future__ import absolute_import)
    • Fixing code that is deprecated in Qt 4.8 and removed in Qt 5 (unicode-futurized-qt5)
      • Updated all signals to new-style
  • If we go 2 to 3, this could break packages
    • means we should schedule any package format changes for the same time
    • e.g., imports should be unrelated to code path (function to load module from package identifier?) (take them out of vistrails.* #1002)
    • any structural changes (e.g. the __init__ versus init thing) (RR thinks it makes sense, though having both named "init" is unfortunate)
    • putting package identifier as xml?
      • Python not so bad, plus some stuff in there is Python code (checking dependencies)
    • version the APIs?
      • RR planning on versioning vistrails_module.Module, no point versioning the whole package?
  • file formats on 2 to 3:
    • no real translation/upgrade, but non-ascii values that work on 3 won't load in 2

January 13, 2016

Updates

Items to Discuss

January 6, 2016

Updates Items to Discuss

  • Updating VisTrails dependencies
    • Successfully built Win7-64/Python3/PyQt5/Qt5/WebEngine/VTK7
      • VTK 7 is the first supporting Python 3 but is only in release candidate phase.
        • Next version of VTK 6 is rumored to support Python 3
        • There is a development branch of VTK 6 supporting Python 3
      • Can travis build this?
        • We can skip tests for WebEngine and VTK if needed
    • Python 3 showstoppers
      • No MySQL-python (sqlalchemy supports mysql through other drivers)
      • No suds (there are active forks but we could also drop support?)
  • Options for python2/3 support:
    • Interpreter could be python2/python3 based on packages
    • six layer works but not the easiest to maintain (e.g. in reprozip)
  • Drop support for win-64
  • Update copyright headers to 2016

Older meetings

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