Undefined behavior when to_csv called with # in column header #569
Description
Describe the bug
Exporting to csv when a column header starts with '#' results in undefined behavior.
To Reproduce
Steps to reproduce the behavior:
- run
to_csvwhen a column header has '#' in it
Expected behavior
Expected behavior is to get that exact column header in the csv, but instead the column header is treated as a URL fragment.
Screenshots
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Smartphone (please complete the following information):
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Additional context
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