Deprecation aliases in cbook#
matplotlib.cbook.deprecation was previously deprecated in
Matplotlib 3.4, along with deprecation-related API in
to technical issues,
matplotlib.cbook.mplDeprecation did not raise deprecation warnings on use.
Changes in Python have now made it possible to warn when these aliases are
In order to avoid downstream breakage, these aliases will now warn, and their
removal has been pushed from 3.6 to 3.8 to give time to notice said warnings.
As replacement, please use