PR Summary

Fixes recursion error for #11163

from matplotlib import pyplot as plt
import numpy as np

f, ax = plt.subplots()
ax.plot(np.arange(100))
ax.set_yscale('symlog')
print(ax.get_yaxis_transform())

I don't think this fix is really the correct fix. If a Transform doesn't have its str method defined, the default string method should not have a recursion. But this fixes the error.

Ping @anntzer who did some work on the transform repr recently...

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