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[utils] `strftime_or_none`: Handle negative timestamps 

Closes #6706
Authored by pukkandan, dirkf
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pukkandan 2023-06-21 05:18:03 +05:30
parent 93b39cdbd9
commit a35af4306d
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yt_dlp/utils/_utils.py
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@ -2452,7 +2452,10 @@ def strftime_or_none(timestamp, date_format, default=None):
if isinstance(timestamp, (int, float)): # unix timestamp
# Using naive datetime here can break timestamp() in Windows
# Ref: https://github.com/yt-dlp/yt-dlp/issues/5185, https://github.com/python/cpython/issues/94414
datetime_object = datetime.datetime.fromtimestamp(timestamp, datetime.timezone.utc)
# Also, datetime.datetime.fromtimestamp breaks for negative timestamps
# Ref: https://github.com/yt-dlp/yt-dlp/issues/6706#issuecomment-1496842642
datetime_object = (datetime.datetime.fromtimestamp(0, datetime.timezone.utc)
+ datetime.timedelta(seconds=timestamp))
elif isinstance(timestamp, str): # assume YYYYMMDD
datetime_object = datetime.datetime.strptime(timestamp, '%Y%m%d')
date_format = re.sub( # Support %s on windows