API: disallow inplace setting with where and a non-np.nan value (GH7656) #7657
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jreback
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Jul 3, 2014
API: disallow inplace setting with where and a non-np.nan value (GH7656)
| df = DataFrame([{'A': 1, 'B': np.nan, 'C': 'Test'}, {'A': np.nan, 'B': 'Test', 'C': np.nan}]) | ||
| expected = df.where(~isnull(df), None) | ||
| with tm.assertRaisesRegexp(TypeError, 'boolean setting on mixed-type'): | ||
| df.where(~isnull(df), None, inplace=True) |
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@jreback i dont understand what problem this is solving. This also raises with a non-NA value.
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closes #7656