Created
November 19, 2020 00:41
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Incorrect writing of dates in plistlib
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import plistlib | |
import os | |
import time | |
from datetime import datetime | |
from dateutil.tz import gettz | |
# create a controlled environment for testing: setup default timezone | |
os.environ['TZ'] = 'GMT' | |
time.tzset() | |
# create both timezone naive and timezone aware dates | |
naive = datetime(2020, 11, 18, 21, 0, 0) | |
aware = datetime(2020, 11, 18, 21, 0, 0, tzinfo=gettz('Europe/Paris')) | |
print(plistlib.dumps({'date': naive})) | |
# output correct: | |
# <?xml version="1.0" encoding="UTF-8"?> | |
# <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> | |
# <plist version="1.0"> | |
# <dict> | |
# <key>date</key> | |
# <date>2020-11-18T21:00:00Z</date> | |
# </dict> | |
# </plist> | |
print(plistlib.dumps({'date': aware})) | |
# output incorrect, date should be "2020-11-18T20:00:00Z": | |
# <?xml version="1.0" encoding="UTF-8"?> | |
# <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> | |
# <plist version="1.0"> | |
# <dict> | |
# <key>date</key> | |
# <date>2020-11-18T21:00:00Z</date> | |
# </dict> | |
# </plist> |
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