reqs: Fix for matplotlib >=3.6.3

[georgebisbas]

Temporary fix to avoid breaking since this update...

TypeError                                 Traceback (most recent call last)
Cell In[15], line 15
     12 init_smooth(field=u.data[0], dx=grid.spacing[0], dy=grid.spacing[1])
     13 init_smooth(field=u.data[1], dx=grid.spacing[0], dy=grid.spacing[1])
---> 15 plot_field(u.data[0])

File ~/Desktop/Work/devito/examples/cfd/tools.py:38, in plot_field(field, xmin, xmax, ymin, ymax, zmin, zmax, view, linewidth)
     36 y_coord = np.linspace(ymin, ymax, field.shape[1])
     37 fig = pyplot.figure(figsize=(11, 7), dpi=100)
---> 38 ax = fig.gca(projection='3d')
     39 X, Y = np.meshgrid(x_coord, y_coord, indexing='ij')
     40 ax.plot_surface(X, Y, field[:], cmap=cm.viridis, rstride=1, cstride=1,
     41                 linewidth=linewidth, antialiased=False)

TypeError: FigureBase.gca() got an unexpected keyword argument 'projection'

[mloubout]

What is breaking? So that we know if someone comes up with the same issue.

[codecov]

Codecov Report

Merging #2047 (1e4d200) into master (bcc6b4b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2047   +/-   ##
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  Coverage   87.73%   87.73%           
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  Files         221      221           
  Lines       39135    39135           
  Branches     5094     5094           
=======================================
  Hits        34334    34334           
  Misses       4238     4238           
  Partials      563      563           

[georgebisbas]

What is breaking? So that we know if someone comes up with the same issue.

updated, it is a plotting issue, as used in a few notebooks

[FabioLuporini]

why is it breaking?

[georgebisbas]

So, current CI, does not update matplotlib.
But users who will install latest matplotlib (3.6.3, rolling from 11th of January) will experience this end-of-life deprecation coming from every tutorial that uses plot_field

https://forum.devtalk.com/t/programming-machine-learning-some-plot-files-are-throwing-error/83609

This:
https://matplotlib.org/3.6.3/api/prev_api_changes/api_changes_3.4.0.html#deprecations

[mloubout]

this should just be pip install -e .[extras]

[FabioLuporini]

Restricting matplotlib doesn't sound like a good idea

Another story the fact that matplotlib shouldn't even be a strict dependency

[mloubout]

Does it work with earlier versions as well?