Validate plot backend when setting. #28164
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```python
In [1]: import pandas as pd
In [2]: import sys
In [3]: import types
In [4]: module = types.ModuleType("foo")
In [5]: sys.modules['foo'] = module
In [6]: pd.set_option('plotting.backend', 'foo')
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-6-123b6513deb2> in <module>
----> 1 pd.set_option('plotting.backend', 'foo')
...
~/sandbox/pandas/pandas/plotting/_core.py in _find_backend(backend)
1588 "top-level `.plot` method."
1589 )
-> 1590 raise ValueError(msg.format(name=backend))
1591
1592
ValueError: Could not find plotting backend 'foo'. Ensure that you've installed the package providing the 'foo' entrypoint, or that the package has atop-level `.plot` method.
```
Closes pandas-dev#28163
WillAyd
requested changes
Aug 28, 2019
datapythonista
approved these changes
Aug 30, 2019
|
Merging later today if there aren't any objections. |
|
LGTM |
proost
pushed a commit
to proost/pandas
that referenced
this pull request
Dec 19, 2019
* Validate plot backend when setting. Closes pandas-dev#28163
proost
pushed a commit
to proost/pandas
that referenced
this pull request
Dec 19, 2019
* Validate plot backend when setting. Closes pandas-dev#28163
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Closes #28163