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DOC: to_datetime param format has no effect for df #54079

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Merged
merged 2 commits into from
Jul 11, 2023
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DOC: to_datetime param format has no effect for df #54079

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DOC: to_datetime param format has no effect for df
natmokval Jul 11, 2023
19abef1
warning -> note
MarcoGorelli Jul 11, 2023
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8 changes: 7 additions & 1 deletion pandas/core/tools/datetimes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -706,7 +706,8 @@ def to_datetime(
arg : int, float, str, datetime, list, tuple, 1-d array, Series, DataFrame/dict-like
The object to convert to a datetime. If a :class:`DataFrame` is provided, the
method expects minimally the following columns: :const:`"year"`,
:const:`"month"`, :const:`"day"`.
:const:`"month"`, :const:`"day"`. The column "year"
must be specified in 4-digit format.
errors : {'ignore', 'raise', 'coerce'}, default 'raise'
- If :const:`'raise'`, then invalid parsing will raise an exception.
- If :const:`'coerce'`, then invalid parsing will be set as :const:`NaT`.
Expand Down Expand Up @@ -765,6 +766,11 @@ def to_datetime(
time string (not necessarily in exactly the same format);
- "mixed", to infer the format for each element individually. This is risky,
and you should probably use it along with `dayfirst`.

.. note::

If a :class:`DataFrame` is passed, then `format` has no effect.

exact : bool, default True
Control how `format` is used:

Expand Down