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gh-137952: update csv.Sniffer().has_header() docs to describe the actual off-by-onish behavior #137953

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gh-137952: update csv.Sniffer().has_header() docs to describe the actual off-by-onish behavior #137953

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3f5ff7c
checks 21, not 20
maurycy Aug 19, 2025
d903629
Update Doc/library/csv.rst
maurycy Aug 19, 2025
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4 changes: 2 additions & 2 deletions Doc/library/csv.rst
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Expand Up @@ -294,8 +294,8 @@ The :mod:`csv` module defines the following classes:
- the second through n-th rows contain strings where at least one value's
length differs from that of the putative header of that column.

Twenty rows after the first row are sampled; if more than half of columns +
rows meet the criteria, :const:`True` is returned.
Twenty-one rows after the first row are sampled; if more than half of
columns + rows meet the criteria, :const:`True` is returned.

.. note::

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