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pd.DataFrame.astype should allow dict as argument #12801

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maxnoe opened this issue Apr 5, 2016 · 1 comment
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pd.DataFrame.astype should allow dict as argument #12801

maxnoe opened this issue Apr 5, 2016 · 1 comment
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Dtype Conversions Unexpected or buggy dtype conversions Duplicate Report Duplicate issue or pull request

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@maxnoe
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maxnoe commented Apr 5, 2016

Currently pd.DataFrame.astype only allows for one type.

I would like it to support a dict mapping column names to dtypes.
Like for example the dtype argument of pd.read_json.

df = pd.DataFrame({'a': [1, 2, 3], 'b': [1, 2, 3]})
df = df.astype({'a': 'int16', 'b': 'float32'})
@jreback
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jreback commented Apr 5, 2016

dupe of #7271

PR is #12086

welcome to have you pick it up.

@jreback jreback closed this as completed Apr 5, 2016
@jreback jreback added Duplicate Report Duplicate issue or pull request Dtype Conversions Unexpected or buggy dtype conversions labels Apr 5, 2016
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