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ENH: Added a new format in parsing.pyx #50523

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41914db
added a new format
ramvikrams Jan 1, 2023
cf06a27
Update parsing.pyx
ramvikrams Jan 2, 2023
b6fa7ae
Update parsing.pyx
ramvikrams Jan 2, 2023
9a740a6
Update test_parsing.py
ramvikrams Jan 2, 2023
4989672
Update parsing.pyx
ramvikrams Jan 3, 2023
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1 change: 1 addition & 0 deletions pandas/_libs/tslibs/parsing.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -856,6 +856,7 @@ def guess_datetime_format(dt_str: str, bint dayfirst=False) -> str | None:
(("day_of_week",), "%a", 0),
(("day_of_week",), "%A", 0),
(("meridiem",), "%p", 0),
(("year", "month", "day"), ("hour", "minute", "second"), "%Y%m%d %H%M%S", 0),
]

if dayfirst:
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13 changes: 13 additions & 0 deletions pandas/tests/tslibs/test_parsing.py
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Expand Up @@ -332,3 +332,16 @@ def test_guess_datetime_format_f(input):
result = parsing.guess_datetime_format(input)
expected = "%Y-%m-%dT%H:%M:%S.%f"
assert result == expected


@pytest.mark.parametrize(
"input",
[
"20110519 010000",
"20120617 020000",
],
)
def test_guess_datetime_format_iso_new(input):
result = parsing.guess_datetime_format(input)
expected = "%Y%m%d %H%M%S"
assert result == expected