DEPR: Deprecate params levels & codes in MultiIndex.copy #36685
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looks fine. is there an issue discussing this? |
jreback
requested changes
Sep 27, 2020
pandas/core/indexes/multi.py
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| @@ -1575,7 +1594,7 @@ def dropna(self, how="any"): | |||
| raise ValueError(f"invalid how option: {how}") | |||
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| new_codes = [level_codes[~indexer] for level_codes in self.codes] | |||
| return self.copy(codes=new_codes, deep=True) | |||
| return self.copy(deep=True).set_codes(codes=new_codes) | |||
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Looking again, the call to .copy isn't needed because a MultiIndex is immutable, so I've removed that call.
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No issue, so I’m fine discussing it here. My opinion is that copy does too much and removing this makes the API cleaner. |
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jreback
approved these changes
Oct 1, 2020
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thanks @topper-123 |
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Deprecates params
levels&codesinMultiIndex.copy.