def datetime_to_imap(dt):
"""Convert a datetime instance to a IMAP datetime string
If timezone information is missing the current system timezone is used.
"""
if not dt.tzinfo:
dt = dt.replace(tzinfo=FixedOffset.for_system())
return dt.strftime("%d-%b-%Y %H:%M:%S %z")
def _convert_INTERNALDATE(date_string):
mo = imaplib.InternalDate.match('INTERNALDATE "%s"' % date_string)
if not mo:
raise ValueError("couldn't parse date %r" % date_string)
zoneh = int(mo.group('zoneh'))
zonem = (zoneh * 60) + int(mo.group('zonem'))
if mo.group('zonen') == '-':
zonem = -zonem
tz = FixedOffset(zonem)
year = int(mo.group('year'))
mon = imaplib.Mon2num[mo.group('mon')]
day = int(mo.group('day'))
hour = int(mo.group('hour'))
min = int(mo.group('min'))
sec = int(mo.group('sec'))
dt = datetime(year, mon, day, hour, min, sec, 0, tz)
# Normalise to host system's timezone
return dt.astimezone(FixedOffset.for_system()).replace(tzinfo=None)
