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`pcolormesh` breaks with most recent `matplotlib` version

See original GitHub issue

Describe the bug With matplotlib set to most recent version in requirements.txt, we get the following error in the tropical-pacific-ssts notebook:

Notebook error:

CellExecutionError in examples/decadal/tropical-pacific-ssts.ipynb:

------------------

ax = plt.axes(projection=ccrs.Orthographic(-80, 0))

p = ax.pcolormesh(recon.TLONG, recon.TLAT, recon.mean('time'), 

              transform=ccrs.PlateCarree(), cmap='twilight')

ax.add_feature(cfeature.LAND, color='#d3d3d3')

ax.set_global()

plt.colorbar(p, label='Sea Surface Temperature [degC]')

ax.set(title='Example Data Coverage')

------------------

---------------------------------------------------------------------------

TypeError                                 Traceback (most recent call last)

<ipython-input-1-9e314160e532> in <module>

      1 ax = plt.axes(projection=ccrs.Orthographic(-80, 0))

      2 p = ax.pcolormesh(recon.TLONG, recon.TLAT, recon.mean('time'), 

----> 3               transform=ccrs.PlateCarree(), cmap='twilight')

      4 ax.add_feature(cfeature.LAND, color='#d3d3d3')

      5 ax.set_global()

~/miniconda/envs/climpred-dev/lib/python3.6/site-packages/cartopy/mpl/geoaxes.py in pcolormesh(self, *args, **kwargs)

   1457                              ' consider using PlateCarree/RotatedPole.')

   1458         kwargs.setdefault('transform', t)

-> 1459         result = self._pcolormesh_patched(*args, **kwargs)

   1460         self.autoscale_view()

   1461         return result

~/miniconda/envs/climpred-dev/lib/python3.6/site-packages/cartopy/mpl/geoaxes.py in _pcolormesh_patched(self, *args, **kwargs)

   1489         allmatch = (shading == 'gouraud')

   1490 

-> 1491         X, Y, C = self._pcolorargs('pcolormesh', *args, allmatch=allmatch)

   1492         Ny, Nx = X.shape

   1493 

TypeError: _pcolorargs() got an unexpected keyword argument 'allmatch'

TypeError: _pcolorargs() got an unexpected keyword argument 'allmatch'

Interestingly, this is due to the main requirements.txt file, not the docs file. Don’t have time now to investigate this, but would be good to not force an earlier version of matplotlib for the main install.

Issue Analytics

State:
Created 3 years ago
Comments:5 (1 by maintainers)

Top GitHub Comments

3reactions

ahuang11commented, Sep 20, 2020

I think just need cartopy==0.18

0reactions

bradyrxcommented, Sep 24, 2020

Addressed in #451

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