/usr/lib/python2.7/dist-packages/mx/DateTime/Timezone.py is in python-egenix-mxdatetime 3.2.9-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 | # -*- coding: latin-1 -*-
""" Timezone information.
XXX This module still has prototype status and is undocumented.
XXX Double check the offsets given in the zonetable below.
XXX Add TZ environment variable parsing functions. The REs are already
there.
Copyright (c) 1998-2000, Marc-Andre Lemburg; mailto:mal@lemburg.com
Copyright (c) 2000-2015, eGenix.com Software GmbH; mailto:info@egenix.com
See the documentation for further information on copyrights,
or contact the author. All Rights Reserved.
"""
import DateTime
import re
### REs
# time zone parsing
isozone = ('(?P<zone>[+-]\d\d:?(?:\d\d)?|Z)')
zone = ('(?P<zone>[A-Z]+|[+-]\d\d?:?(?:\d\d)?)')
zoneoffset = ('(?:'
'(?P<zonesign>[+-])?'
'(?P<hours>\d\d?)'
':?'
'(?P<minutes>\d\d)?'
'(?P<extra>\d+)?'
')'
)
# TZ environment variable parsing
dstswitchtime = ('(?P<hour>\d\d?):?'
'(?P<minute>\d\d)?:?'
'(?P<second>\d\d)?')
dstswitch = ('(?:'
'(?P<doy>\d+)|'
'(?:J(?P<jdoy>\d+))|'
'(?:M(?P<month>\d+).(?P<week>\d+).(?P<day>\d+))'
')'
'(?:/' + dstswitchtime + ')?'
)
# XXX Doesn't work since re doesn't like multiple occurrences of
# group names.
#tz = ('(?::(?P<filename>.+))|'
# '(?P<std>[A-Z]+)' + zoneoffset +
# '(?:'
# '(?P<dst>[A-Z]+)' + zoneoffset + '?'+
# '(?:[;,]' + dstswitch + '[;,]' + dstswitch + ')'
# ')?'
# )
# Compiled RE objects
isozoneRE = re.compile(zone)
zoneRE = re.compile(zone)
zoneoffsetRE = re.compile(zoneoffset)
#tzRE= re.compile(tz)
### Time zone offset table
#
# The offset given here represent the difference between UTC and the
# given time zone.
#
# Additions and corrections are always welcome :-)
#
# Note that some zone names are ambiguous, e.g. IST can refer to Irish
# Summer Time, Indian Standard Time, Israel Standard Time. We've
# usualy chosen meaning with the most wide-spread use.
#
zonetable = {
# Timezone abbreviations
# Std Summer
# Standards
'UT':0,
'UTC':0,
'GMT':0,
# A few common timezone abbreviations
'CET':1, 'CEST':2, 'CETDST':2, # Central European
'MET':1, 'MEST':2, 'METDST':2, # Mean European
'MEZ':1, 'MESZ':2, # Mitteleuropäische Zeit
'EET':2, 'EEST':3, 'EETDST':3, # Eastern Europe
'WET':0, 'WEST':1, 'WETDST':1, # Western Europe
'MSK':3, 'MSD':4, # Moscow
'IST':5.5, # India
'JST':9, # Japan
'KST':9, # Korea
'HKT':8, # Hong Kong
'BST':1, # British Summer Time
# US time zones
'AST':-4, 'ADT':-3, # Atlantic
'EST':-5, 'EDT':-4, # Eastern
'CST':-6, 'CDT':-5, # Central
'MST':-7, 'MDT':-6, # Midwestern
'PST':-8, 'PDT':-7, # Pacific
# Australian time zones
'CAST':9.5, 'CADT':10.5, # Central
'EAST':10, 'EADT':11, # Eastern
'WAST':8, 'WADT':9, # Western
'SAST':9.5, 'SADT':10.5, # Southern
# US military time zones
'Z': 0,
'A': 1,
'B': 2,
'C': 3,
'D': 4,
'E': 5,
'F': 6,
'G': 7,
'H': 8,
'I': 9,
'K': 10,
'L': 11,
'M': 12,
'N':-1,
'O':-2,
'P':-3,
'Q':-4,
'R':-5,
'S':-6,
'T':-7,
'U':-8,
'V':-9,
'W':-10,
'X':-11,
'Y':-12
}
def utc_offset(zone,
zoneoffset=zoneoffsetRE,
zonetable=zonetable,zerooffset=DateTime.DateTimeDelta(0),
oneMinute=DateTime.oneMinute):
""" utc_offset(zonestring)
Return the UTC time zone offset as DateTimeDelta instance.
zone must be string and can either be given as +-HH:MM,
+-HHMM, +-HH numeric offset or as time zone
abbreviation. Daylight saving time must be encoded into the
zone offset.
Timezone abbreviations are treated case-insensitive.
"""
if not zone:
return zerooffset
uzone = zone.upper()
if zonetable.has_key(uzone):
return zonetable[uzone]*DateTime.oneHour
offset = zoneoffset.match(zone)
if not offset:
raise ValueError,'wrong format or unknown time zone: "%s"' % zone
zonesign,hours,minutes,extra = offset.groups()
if extra:
raise ValueError,'illegal time zone offset: "%s"' % zone
offset = int(hours or 0) * 60 + int(minutes or 0)
if zonesign == '-':
offset = -offset
return offset*oneMinute
|