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segfault in DataFrame.apply with duplicate column names and multiple aggfuncs #21063

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TomAugspurger opened this Issue May 15, 2018 · 0 comments

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TomAugspurger commented May 15, 2018

In [1]: import pandas as pd

In [2]: df = pd.DataFrame([['a', 'b'], ['c', 'd']], columns=['a', 'a'])

In [3]: df.agg(['min'])
Fatal Python error: Cannot recover from stack overflow.

This was present at least in 0.22.0. Haven't looked further.

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