BUG: set_levels set illegal levels. #14290
Closed
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git diff upstream/master | flake8 --diff
MultiIndex.set_levels
, when passed in illegal level values, raises an error.When
inplace=True
, though, the illegal level values are still accepted. Thiscommit fixes that behavior by checking that the proposed level values are legal
before setting them.
Duplicate of #14236, which kept failing the build with Qt errors. This is a retry with a fresh Travis build. Assuming it passes, I'll close #14236 in favor of this PR.