3.4.3: Maintenance release

[guyer]

This maintenance release adds a new example contributed by @Jon83Carvalho, clarifies many points in the documentation, migrates all CI to Azure, updates to using wheels for distribution, and substantially refactors matrices to work more consistently across solvers.

What's Changed

• Debug CI failures by @guyer in Debug CI failures #749
• Stokes Cavity - non-newtonian by @Jon83Carvalho in Stokes Cavity - non-newtonian #748
• Disable TVTK tests if its prerequisites aren't met by @guyer in Disable TVTK tests if its prerequisites aren't met #764
• Tabulate versions of FiPy dependencies when tests are run by @guyer in Tabulate versions of FiPy dependencies when tests are run #763
• Refactor matrices by @guyer in Refactor matrices #721
• Raise ImportError before trying to unpack solvers by @guyer in Raise ImportError before trying to unpack solvers #768
• Introduce SharedTemporaryFile (bis) by @guyer in Introduce SharedTemporaryFile (bis) #769
• Get website documentation to display math by @guyer in Get website documentation to display math #773
• Add future package to Binder environment by @guyer in Add future package to Binder environment #779
• Document parallel gmsh by @guyer in Document parallel gmsh #793
• Remove future from setup.py and _setup commands by @guyer in Remove future from setup.py and _setup commands #785
• Fix broken circleSquare with newer Gmsh by @guyer in Fix broken circleSquare with newer Gmsh #794
• Move trilinos tests to Py3k by @guyer in Move trilinos tests to Py3k #797
• Replace deprecated numpy types by @guyer in Replace deprecated numpy types #798
• Fix Python 2.7 conda environment by @wd15 in Fix Python 2.7 conda environment #795
• Speed up conda environment creation by @guyer in Speed up conda environment creation #804
• Fix python 3.9 represenation of abs by @guyer in Fix python 3.9 represenation of abs #812
• Set up CI with Azure Pipelines by @guyer in Set up CI with Azure Pipelines #822
• fix: stop divide by zero warning in LU solvers by @wd15 in fix: stop divide by zero warning in LU solvers #790
• Change colorbar argument to valid value by @guyer in Change colorbar argument to valid value #829
• Get gmsh version from stderr or stdout by @guyer in Get gmsh version from stderr or stdout #846
• Collect contact information on single page by @guyer in Collect contact information on single page #847
• Debug CIs by @guyer in Debug CIs #848
• Refine azure runs by @guyer in Refine azure runs #851
• Issue858 pysparse ci failure by @guyer in Issue858 pysparse ci failure #859
• Fix missing Qt on headless CI by @guyer in Fix missing Qt on headless CI #864
• Update CI documentation to refer only to Azure by @guyer in Update CI documentation to refer only to Azure #863
• Shift CI from eggs to wheels by @guyer in Shift CI from eggs to wheels #860
• Document the things by @guyer in Document the things #866
• Document viewer attributes by @guyer in Document viewer attributes #867
• Define _localNonOverlappingFaceIDs for Gmsh by @guyer in Define _localNonOverlappingFaceIDs for Gmsh #857
• Update changelog by @guyer in Update changelog #871

New Contributors

• @Jon83Carvalho made their first contribution in Stokes Cavity - non-newtonian #748

Curated Changelog: https://github.com/usnistgov/fipy/blob/3.4.3/CHANGELOG.rst

Full Changelog: 3.4.2.1...3.4.3

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This discussion was created from the release 3.4.3: Maintenance release.

[mhvwerts]

Dear @guyer and colleagues,

Many thanks for Fipy 3.4.3! What a coincidence, we are currently working with our IT department to prepare the computer rooms of our school for next year's courses, and evaluating different options for our Python stack.

We unadvertedly ran the new version on JupyterLite (with Python 3.10), not knowing that 3.4.3 had just appeared. JupyterLite is a Jupyter Notebook that runs completely in the web browser using Javascript/Webassembly technology. This is of interest for teaching purposes, as the students do not have to install any specific software stack. It might even run on a smartphone.

The good news is that we were able to use JupyterLite and run Fipy on a simple cylindrical 1D diffusion problem, all inside a web browser. We did not test any further and will probably continue using a local conda installation instead of JupyterLite for our course.

A JupyterLite instance can be opened via: https://jupyterlite.readthedocs.io/en/latest/_static/lab/index.html

Create a Notebook. In the first cell of the Notebook, put the following code.

import piplite
await piplite.install("fipy")

and in the next cell:

import fipy as fp
print('Fipy version',fp.__version__)

The fipy import throws some warnings, probably related to Python 3.10 around which the present JupyterLite is centered. Finally, it prints Fipy version 3.4.3

Our example/test notebook worked fine with JupyterLite (with the import piplite; await piplite.install("fipy") inserted as the first cell).

Thanks again for Fipy.

[guyer]

That's great to hear, @mhvwerts. The warnings are probably nothing to worry about, but please share if you're at all concerned.

[mhvwerts]

Indeed, nothing to worry about, just SyntaxWarnings about is and is not.

Here is the complete list of warnings generated by import fipy when in JupyterLite/Python 3.10.

/lib/python3.10/site-packages/fipy/variables/variable.py:649: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if v.shape is not ():
/lib/python3.10/site-packages/fipy/variables/meshVariable.py:118: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if valueShape is not () and valueShape[-1] == self._globalNumberOfElements:
/lib/python3.10/site-packages/fipy/variables/meshVariable.py:523: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  and otherShape is not ()
/lib/python3.10/site-packages/fipy/meshes/abstractMesh.py:1148: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if arr.dtype.name is 'bool':
/lib/python3.10/site-packages/fipy/meshes/builders/utilityClasses.py:62: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if numerix.getShape(d) is not ():
/lib/python3.10/site-packages/fipy/terms/abstractConvectionTerm.py:155: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if (coeffShape is ()) or (coeffShape[0] != var.mesh.dim):

[mhvwerts]

It looks a bit like issue #729 .

[guyer]

Yep, the same thing for sure

[guyer]

FYI: anaconda and/or conda-forge are having a major breakage right now, leading to 3.4.3 not being available via conda, yet.

[guyer]

Breakage resolved