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Description
Bug report
Sources of deprecation warnings in matplotlib are hard to track down.
Code for reproduction
from matplotlib import pyplot as plt
plt.tick_params(left="False")Actual outcome
/home/hdembinski/.local/lib/python3.7/site-packages/matplotlib/cbook/__init__.py:424: MatplotlibDeprecationWarning:
Passing one of 'on', 'true', 'off', 'false' as a boolean is deprecated; use an actual boolean (True/False) instead.
warn_deprecated("2.2", "Passing one of 'on', 'true', 'off', 'false' as a "
As you can see, there is no indication which line in my client code triggers the warning. If the script is long and not minimal, the origin is difficult to find.
Expected outcome
The deprecation warning should be enhanced with a backtrace of some sort, that allows me to find the call in my script which triggers the warning.
Matplotlib version
- Matplotlib version: 3.0.2
- Python version: 3.7.1
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