plt.style.use() doesn't work on the first pass

[andrzejnovak]

Using style to update rcParams has a strange bug, running the code as shown below the changed parameter isn't updated. Strangely enough after executing all cells again it works as expected.

Matplotlib version

• Operating system: WSL
• Matplotlib version: master
• Matplotlib backend (module://ipykernel.pylab.backend_inline):
• Python version: 3.7
• Jupyter version (if applicable): 1.0.0
• Other libraries:

[ImportanceOfBeingErnest]

It's more that it's not working in the first cell, or the cell where pyplot is first imported.

This is a known thing, reported e.g. in #9217 already, but ultimately it's an IPython/ipykernel problem, tracked in ipython/ipykernel#267