PR Summary

This modifies XAxis.tick_left and X-axis.tick_right to keep the tick labels turned off if the major
labels are already turned off.

Not 100% convinced this is the right thing to do, but fixes #9664 Wild guess is that this doesn't break anything, whereas the new behaviour did.

Fixes:

import matplotlib.pyplot as plt

f, axes = plt.subplots(1, 2, sharey=True)
axes[1].yaxis.tick_left()
plt.show()

Breaks:

The following if the user expected tick_left() to turn the labeling back on.

import matplotlib.pyplot as plt

f, ax = plt.subplots(1, 2)
ax.yaxis.set_tick_params(which='both', labelleft=False)
ax.yaxis.tick_left()
plt.show()

I'm not sure why this would happen, but this PR breaks that case...

PR Checklist

• Has Pytest style unit tests
• Code is PEP 8 compliant
• New features are documented, with examples if plot related
• Documentation is sphinx and numpydoc compliant
• Added an entry to doc/users/next_whats_new/ if major new feature (follow instructions in README.rst there)
• Documented in doc/api/api_changes.rst if API changed in a backward-incompatible way
• fix tick_top tick_bottom