Details
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Bug
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Status: Open
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P3
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Resolution: Unresolved
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None
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None
Description
SeriesGroupBy.corr should raise an error at construction time because it needs multiple Series:
In [4]: df.groupby('A').B.corr() --------------------------------------------------------------------------- TypeError Traceback (most recent call last) <ipython-input-4-d760b6077290> in <module> ----> 1 df.groupby('A').B.corr() ~/.pyenv/versions/3.8.6/envs/beam/lib/python3.8/site-packages/pandas/core/groupby/groupby.py in wrapper(*args, **kwargs) 815 return self.apply(curried) 816 --> 817 return self._python_apply_general(curried, self._obj_with_exclusions) 818 819 wrapper.__name__ = name ~/.pyenv/versions/3.8.6/envs/beam/lib/python3.8/site-packages/pandas/core/groupby/groupby.py in _python_apply_general(self, f, data) 926 data after applying f 927 """ --> 928 keys, values, mutated = self.grouper.apply(f, data, self.axis) 929 930 return self._wrap_applied_output( ~/.pyenv/versions/3.8.6/envs/beam/lib/python3.8/site-packages/pandas/core/groupby/ops.py in apply(self, f, data, axis) 236 # group might be modified 237 group_axes = group.axes --> 238 res = f(group) 239 if not _is_indexed_like(res, group_axes, axis): 240 mutated = True ~/.pyenv/versions/3.8.6/envs/beam/lib/python3.8/site-packages/pandas/core/groupby/groupby.py in curried(x) 804 805 def curried(x): --> 806 return f(x, *args, **kwargs) 807 808 # preserve the name so we can detect it when calling plot methods, TypeError: corr() missing 1 required positional argument: 'other'
But this isn't raised when called on an empty dataset (perhaps an upstream bug), so we don't raise it during proxy generation. It will not fail until the pipeline is running.