Improve error for invalid format strings / misspelled data keys. #23088
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| @@ -118,7 +118,7 @@ def __call__(self, ax, renderer): | |||
| self._transform - ax.figure.transSubfigure) | |||
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| def _process_plot_format(fmt): | |||
| def _process_plot_format(fmt, *, ambiguous_fmt_datakey=False): | |||
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Bonus points if you copy the docstring for the parameter here as well.
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The docstring was already not numpydoc'ed (and doing properly so is slightly messy due to, well, the messy API), so I'll skip these points for now.
| @@ -163,31 +163,31 @@ def _process_plot_format(fmt): | |||
| except ValueError: | |||
| pass # No, not just a color. | |||
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| errfmt = ("{!r} is neither a data key nor a valid format string ({})" | |||
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| errfmt = ("{!r} is neither a data key nor a valid format string ({})" | |
| errfmt = ("{!r} is not a data key or a valid format string ({})" |
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This is a bit of an Oxford comma thing, but I would tend to say neither...nor here. It's correct and a bit more formal.
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I do prefer neither/nor, so I'll go back to that :)
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Sounds good. :) I'm not formal enough in my speaking it seems!
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I'll take the liberty of merging because I don't think @greglucas was that worried about the grammar change ;-) |
PR Summary
Closes #23083 (IMO).
FWIW I agree that the current behavior can be a bit confusing (I'm not sure really like the whole data kwarg business due to the confusion it creates in combination with plot()'s weird signatures, but that ship has sailed long ago).
PR Checklist
Tests and Styling
pytestpasses).flake8-docstringsand runflake8 --docstring-convention=all).Documentation
doc/users/next_whats_new/(follow instructions in README.rst there).doc/api/next_api_changes/(follow instructions in README.rst there).