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DOC: Added "Raises KeyError" #30014

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Merged
merged 3 commits into from
Dec 4, 2019
Merged

DOC: Added "Raises KeyError" #30014

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457e48c
DOC: Raises `KeyError`
Dec 3, 2019
0b36583
Merge remote-tracking branch 'upstream/master' into DOC-compact-chainmap
Dec 4, 2019
c5d7438
DOC: Raises `KeyError`
Dec 4, 2019
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10 changes: 8 additions & 2 deletions pandas/compat/chainmap.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,12 +6,18 @@ def __setitem__(self, key, value):
for mapping in self.maps:
if key in mapping:
mapping[key] = value
return
break
self.maps[0][key] = value

def __delitem__(self, key):
"""
Raises
------
KeyError
If `key` doesn't exist.
"""
for mapping in self.maps:
if key in mapping:
del mapping[key]
return
break
raise KeyError(key)