imaplib2.py 文件源码

def Time2Internaldate(date_time):

    """'"DD-Mmm-YYYY HH:MM:SS +HHMM"' = Time2Internaldate(date_time)
    Convert 'date_time' to IMAP4 INTERNALDATE representation."""

    if isinstance(date_time, (int, float)):
        tt = time.localtime(date_time)
    elif isinstance(date_time, (tuple, time.struct_time)):
        tt = date_time
    elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
        return date_time        # Assume in correct format
    else:
        raise ValueError("date_time not of a known type")

    if time.daylight and tt[-1]:
        zone = -time.altzone
    else:
        zone = -time.timezone
    return ('"%2d-%s-%04d %02d:%02d:%02d %+03d%02d"' %
            ((tt[2], MonthNames[tt[1]], tt[0]) + tt[3:6] +
             divmod(zone//60, 60)))