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MySQLdb
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"""times module This module provides some Date and Time classes for dealing with MySQL data. Use Python datetime module to handle date and time columns. """ from time import localtime from datetime import date, datetime, time, timedelta from _mysql import string_literal Date = date Time = time TimeDelta = timedelta Timestamp = datetime DateTimeDeltaType = timedelta DateTimeType = datetime def DateFromTicks(ticks): """Convert UNIX ticks into a date instance.""" return date(*localtime(ticks)[:3]) def TimeFromTicks(ticks): """Convert UNIX ticks into a time instance.""" return time(*localtime(ticks)[3:6]) def TimestampFromTicks(ticks): """Convert UNIX ticks into a datetime instance.""" return datetime(*localtime(ticks)[:6]) format_TIME = format_DATE = str def format_TIMEDELTA(v): seconds = int(v.seconds) % 60 minutes = int(v.seconds // 60) % 60 hours = int(v.seconds // 3600) % 24 return '%d %d:%d:%d' % (v.days, hours, minutes, seconds) def format_TIMESTAMP(d): """ :type d: datetime.datetime """ if d.microsecond: fmt = "{0.year:04}-{0.month:02}-{0.day:02} {0.hour:02}:{0.minute:02}:{0.second:02}.{0.microsecond:06}" else: fmt = "{0.year:04}-{0.month:02}-{0.day:02} {0.hour:02}:{0.minute:02}:{0.second:02}" return fmt.format(d) def DateTime_or_None(s): try: if len(s) < 11: return Date_or_None(s) micros = s[20:] if len(micros) == 0: # 12:00:00 micros = 0 elif len(micros) < 7: # 12:00:00.123456 micros = int(micros) * 10 ** (6 - len(micros)) else: return None return datetime( int(s[:4]), # year int(s[5:7]), # month int(s[8:10]), # day int(s[11:13] or 0), # hour int(s[14:16] or 0), # minute int(s[17:19] or 0), # second micros, # microsecond ) except ValueError: return None def TimeDelta_or_None(s): try: h, m, s = s.split(':') if '.' in s: s, ms = s.split('.') ms = ms.ljust(6, '0') else: ms = 0 if h[0] == '-': negative = True else: negative = False h, m, s, ms = abs(int(h)), int(m), int(s), int(ms) td = timedelta(hours=h, minutes=m, seconds=s, microseconds=ms) if negative: return -td else: return td except ValueError: # unpacking or int/float conversion failed return None def Time_or_None(s): try: h, m, s = s.split(':') if '.' in s: s, ms = s.split('.') ms = ms.ljust(6, '0') else: ms = 0 h, m, s, ms = int(h), int(m), int(s), int(ms) return time(hour=h, minute=m, second=s, microsecond=ms) except ValueError: return None def Date_or_None(s): try: return date( int(s[:4]), # year int(s[5:7]), # month int(s[8:10]), # day ) except ValueError: return None def DateTime2literal(d, c): """Format a DateTime object as an ISO timestamp.""" return string_literal(format_TIMESTAMP(d), c) def DateTimeDelta2literal(d, c): """Format a DateTimeDelta object as a time.""" return string_literal(format_TIMEDELTA(d),c) def mysql_timestamp_converter(s): """Convert a MySQL TIMESTAMP to a Timestamp object.""" # MySQL>4.1 returns TIMESTAMP in the same format as DATETIME if s[4] == '-': return DateTime_or_None(s) s = s + "0"*(14-len(s)) # padding parts = map(int, filter(None, (s[:4],s[4:6],s[6:8], s[8:10],s[10:12],s[12:14]))) try: return Timestamp(*parts) except (SystemExit, KeyboardInterrupt): raise # pragma: no cover except: return None
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