DataFrame.append with empty list raises IndexError · Issue #28769 · pandas-dev/pandas (original) (raw)

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Description

Code Sample

import pandas pandas.DataFrame().append([]) Traceback (most recent call last): File "", line 1, in File ".env\lib\site-packages\pandas\core\frame.py", line 7108, in append elif isinstance(other, list) and not isinstance(other[0], DataFrame): IndexError: list index out of range pandas.version '0.25.1'

Problem description

Crash when passing empty sequence to DataFrame.append

Expected Output

No crash.
The source DataFrame is returned intact.

Version

Version 0.25.1. Happens in master.
Problem line
https://github.com/pandas-dev/pandas/blob/master/pandas/core/frame.py#L7014