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Update pytz lib

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rembo10
2022-01-15 21:46:34 +05:30
parent ab4dd18be4
commit 9551e1b04a
612 changed files with 5140 additions and 1120 deletions
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lib/pytz/__init__.py
+131 -85
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@@ -8,12 +8,25 @@ See the datetime section of the Python Library Reference for information
on how to use these modules.
'''
# The Olson database is updated several times a year.
OLSON_VERSION = '2014j'
VERSION = '2014.10' # Switching to pip compatible version numbering.
import sys
import datetime
import os.path
from pytz.exceptions import AmbiguousTimeError
from pytz.exceptions import InvalidTimeError
from pytz.exceptions import NonExistentTimeError
from pytz.exceptions import UnknownTimeZoneError
from pytz.lazy import LazyDict, LazyList, LazySet # noqa
from pytz.tzinfo import unpickler, BaseTzInfo
from pytz.tzfile import build_tzinfo
# The IANA (nee Olson) database is updated several times a year.
OLSON_VERSION = '2021c'
VERSION = '2021.3' # pip compatible version number.
__version__ = VERSION
OLSEN_VERSION = OLSON_VERSION # Old releases had this misspelling
OLSEN_VERSION = OLSON_VERSION # Old releases had this misspelling
__all__ = [
'timezone', 'utc', 'country_timezones', 'country_names',
@@ -21,32 +34,15 @@ __all__ = [
'NonExistentTimeError', 'UnknownTimeZoneError',
'all_timezones', 'all_timezones_set',
'common_timezones', 'common_timezones_set',
]
import sys, datetime, os.path, gettext
try:
from pkg_resources import resource_stream
except ImportError:
resource_stream = None
from pytz.exceptions import AmbiguousTimeError
from pytz.exceptions import InvalidTimeError
from pytz.exceptions import NonExistentTimeError
from pytz.exceptions import UnknownTimeZoneError
from pytz.lazy import LazyDict, LazyList, LazySet
from pytz.tzinfo import unpickler
from pytz.tzfile import build_tzinfo, _byte_string
'BaseTzInfo', 'FixedOffset',
]
try:
str
except NameError: # Python 3.x
if sys.version_info[0] > 2: # Python 3.x
# Python 3.x doesn't have unicode(), making writing code
# for Python 2.3 and Python 3.x a pain.
str = str
unicode = str
def ascii(s):
r"""
@@ -57,10 +53,13 @@ except NameError: # Python 3.x
...
UnicodeEncodeError: ...
"""
s.encode('US-ASCII') # Raise an exception if not ASCII
return s # But return the original string - not a byte string.
if type(s) == bytes:
s = s.decode('ASCII')
else:
s.encode('ASCII') # Raise an exception if not ASCII
return s # But the string - not a byte string.
else: # Python 2.x
else: # Python 2.x
def ascii(s):
r"""
@@ -73,7 +72,7 @@ else: # Python 2.x
...
UnicodeEncodeError: ...
"""
return s.encode('US-ASCII')
return s.encode('ASCII')
def open_resource(name):
@@ -81,49 +80,55 @@ def open_resource(name):
Uses the pkg_resources module if available and no standard file
found at the calculated location.
It is possible to specify different location for zoneinfo
subdir by using the PYTZ_TZDATADIR environment variable.
"""
name_parts = name.lstrip('/').split('/')
for part in name_parts:
if part == os.path.pardir or os.path.sep in part:
raise ValueError('Bad path segment: %r' % part)
filename = os.path.join(os.path.dirname(__file__),
'zoneinfo', *name_parts)
if not os.path.exists(filename) and resource_stream is not None:
# http://bugs.launchpad.net/bugs/383171 - we avoid using this
# unless absolutely necessary to help when a broken version of
# pkg_resources is installed.
return resource_stream(__name__, 'zoneinfo/' + name)
zoneinfo_dir = os.environ.get('PYTZ_TZDATADIR', None)
if zoneinfo_dir is not None:
filename = os.path.join(zoneinfo_dir, *name_parts)
else:
filename = os.path.join(os.path.dirname(__file__),
'zoneinfo', *name_parts)
if not os.path.exists(filename):
# http://bugs.launchpad.net/bugs/383171 - we avoid using this
# unless absolutely necessary to help when a broken version of
# pkg_resources is installed.
try:
from pkg_resources import resource_stream
except ImportError:
resource_stream = None
if resource_stream is not None:
return resource_stream(__name__, 'zoneinfo/' + name)
return open(filename, 'rb')
def resource_exists(name):
"""Return true if the given resource exists"""
try:
if os.environ.get('PYTZ_SKIPEXISTSCHECK', ''):
# In "standard" distributions, we can assume that
# all the listed timezones are present. As an
# import-speed optimization, you can set the
# PYTZ_SKIPEXISTSCHECK flag to skip checking
# for the presence of the resource file on disk.
return True
open_resource(name).close()
return True
except IOError:
return False
# Enable this when we get some translations?
# We want an i18n API that is useful to programs using Python's gettext
# module, as well as the Zope3 i18n package. Perhaps we should just provide
# the POT file and translations, and leave it up to callers to make use
# of them.
#
# t = gettext.translation(
# 'pytz', os.path.join(os.path.dirname(__file__), 'locales'),
# fallback=True
# )
# def _(timezone_name):
# """Translate a timezone name using the current locale, returning Unicode"""
# return t.ugettext(timezone_name)
_tzinfo_cache = {}
def timezone(zone):
r''' Return a datetime.tzinfo implementation for the given timezone
r''' Return a datetime.tzinfo implementation for the given timezone
>>> from datetime import datetime, timedelta
>>> utc = timezone('UTC')
@@ -159,6 +164,9 @@ def timezone(zone):
Unknown
'''
if zone is None:
raise UnknownTimeZoneError(None)
if zone.upper() == 'UTC':
return utc
@@ -168,9 +176,9 @@ def timezone(zone):
# All valid timezones are ASCII
raise UnknownTimeZoneError(zone)
zone = _unmunge_zone(zone)
zone = _case_insensitive_zone_lookup(_unmunge_zone(zone))
if zone not in _tzinfo_cache:
if zone in all_timezones_set:
if zone in all_timezones_set: # noqa
fp = open_resource(zone)
try:
_tzinfo_cache[zone] = build_tzinfo(zone, fp)
@@ -187,11 +195,22 @@ def _unmunge_zone(zone):
return zone.replace('_plus_', '+').replace('_minus_', '-')
_all_timezones_lower_to_standard = None
def _case_insensitive_zone_lookup(zone):
"""case-insensitively matching timezone, else return zone unchanged"""
global _all_timezones_lower_to_standard
if _all_timezones_lower_to_standard is None:
_all_timezones_lower_to_standard = dict((tz.lower(), tz) for tz in all_timezones) # noqa
return _all_timezones_lower_to_standard.get(zone.lower()) or zone # noqa
ZERO = datetime.timedelta(0)
HOUR = datetime.timedelta(hours=1)
class UTC(datetime.tzinfo):
class UTC(BaseTzInfo):
"""UTC
Optimized UTC implementation. It unpickles using the single module global
@@ -241,18 +260,18 @@ class UTC(datetime.tzinfo):
return "UTC"
UTC = utc = UTC() # UTC is a singleton
UTC = utc = UTC() # UTC is a singleton
def _UTC():
"""Factory function for utc unpickling.
Makes sure that unpickling a utc instance always returns the same
Makes sure that unpickling a utc instance always returns the same
module global.
These examples belong in the UTC class above, but it is obscured; or in
the README.txt, but we are not depending on Python 2.4 so integrating
the README.txt examples with the unit tests is not trivial.
the README.rst, but we are not depending on Python 2.4 so integrating
the README.rst examples with the unit tests is not trivial.
>>> import datetime, pickle
>>> dt = datetime.datetime(2005, 3, 1, 14, 13, 21, tzinfo=utc)
@@ -274,6 +293,8 @@ def _UTC():
False
"""
return utc
_UTC.__safe_for_unpickling__ = True
@@ -284,9 +305,10 @@ def _p(*args):
by shortening the path.
"""
return unpickler(*args)
_p.__safe_for_unpickling__ = True
_p.__safe_for_unpickling__ = True
class _CountryTimezoneDict(LazyDict):
"""Map ISO 3166 country code to a list of timezone names commonly used
@@ -329,11 +351,11 @@ class _CountryTimezoneDict(LazyDict):
zone_tab = open_resource('zone.tab')
try:
for line in zone_tab:
line = line.decode('US-ASCII')
line = line.decode('UTF-8')
if line.startswith('#'):
continue
code, coordinates, zone = line.split(None, 4)[:3]
if zone not in all_timezones_set:
if zone not in all_timezones_set: # noqa
continue
try:
data[code].append(zone)
@@ -343,6 +365,7 @@ class _CountryTimezoneDict(LazyDict):
finally:
zone_tab.close()
country_timezones = _CountryTimezoneDict()
@@ -357,7 +380,7 @@ class _CountryNameDict(LazyDict):
zone_tab = open_resource('iso3166.tab')
try:
for line in zone_tab.readlines():
line = line.decode('US-ASCII')
line = line.decode('UTF-8')
if line.startswith('#'):
continue
code, name = line.split(None, 1)
@@ -366,6 +389,7 @@ class _CountryNameDict(LazyDict):
finally:
zone_tab.close()
country_names = _CountryNameDict()
@@ -373,7 +397,7 @@ country_names = _CountryNameDict()
class _FixedOffset(datetime.tzinfo):
zone = None # to match the standard pytz API
zone = None # to match the standard pytz API
def __init__(self, minutes):
if abs(minutes) >= 1440:
@@ -404,29 +428,31 @@ class _FixedOffset(datetime.tzinfo):
def normalize(self, dt, is_dst=False):
'''Correct the timezone information on the given datetime'''
if dt.tzinfo is self:
return dt
if dt.tzinfo is None:
raise ValueError('Naive time - no tzinfo set')
return dt.replace(tzinfo=self)
return dt.astimezone(self)
def FixedOffset(offset, _tzinfos = {}):
def FixedOffset(offset, _tzinfos={}):
"""return a fixed-offset timezone based off a number of minutes.
>>> one = FixedOffset(-330)
>>> one
pytz.FixedOffset(-330)
>>> one.utcoffset(datetime.datetime.now())
datetime.timedelta(-1, 66600)
>>> one.dst(datetime.datetime.now())
datetime.timedelta(0)
>>> str(one.utcoffset(datetime.datetime.now()))
'-1 day, 18:30:00'
>>> str(one.dst(datetime.datetime.now()))
'0:00:00'
>>> two = FixedOffset(1380)
>>> two
pytz.FixedOffset(1380)
>>> two.utcoffset(datetime.datetime.now())
datetime.timedelta(0, 82800)
>>> two.dst(datetime.datetime.now())
datetime.timedelta(0)
>>> str(two.utcoffset(datetime.datetime.now()))
'23:00:00'
>>> str(two.dst(datetime.datetime.now()))
'0:00:00'
The datetime.timedelta must be between the range of -1 and 1 day,
non-inclusive.
@@ -475,18 +501,19 @@ def FixedOffset(offset, _tzinfos = {}):
return info
FixedOffset.__safe_for_unpickling__ = True
def _test():
import doctest, os, sys
import doctest
sys.path.insert(0, os.pardir)
import pytz
return doctest.testmod(pytz)
if __name__ == '__main__':
_test()
all_timezones = \
['Africa/Abidjan',
'Africa/Accra',
@@ -599,6 +626,7 @@ all_timezones = \
'America/Eirunepe',
'America/El_Salvador',
'America/Ensenada',
'America/Fort_Nelson',
'America/Fort_Wayne',
'America/Fortaleza',
'America/Glace_Bay',
@@ -662,6 +690,7 @@ all_timezones = \
'America/North_Dakota/Beulah',
'America/North_Dakota/Center',
'America/North_Dakota/New_Salem',
'America/Nuuk',
'America/Ojinaga',
'America/Panama',
'America/Pangnirtung',
@@ -672,6 +701,7 @@ all_timezones = \
'America/Porto_Acre',
'America/Porto_Velho',
'America/Puerto_Rico',
'America/Punta_Arenas',
'America/Rainy_River',
'America/Rankin_Inlet',
'America/Recife',
@@ -727,10 +757,12 @@ all_timezones = \
'Asia/Aqtobe',
'Asia/Ashgabat',
'Asia/Ashkhabad',
'Asia/Atyrau',
'Asia/Baghdad',
'Asia/Bahrain',
'Asia/Baku',
'Asia/Bangkok',
'Asia/Barnaul',
'Asia/Beirut',
'Asia/Bishkek',
'Asia/Brunei',
@@ -746,6 +778,7 @@ all_timezones = \
'Asia/Dili',
'Asia/Dubai',
'Asia/Dushanbe',
'Asia/Famagusta',
'Asia/Gaza',
'Asia/Harbin',
'Asia/Hebron',
@@ -784,6 +817,7 @@ all_timezones = \
'Asia/Pontianak',
'Asia/Pyongyang',
'Asia/Qatar',
'Asia/Qostanay',
'Asia/Qyzylorda',
'Asia/Rangoon',
'Asia/Riyadh',
@@ -802,6 +836,7 @@ all_timezones = \
'Asia/Thimbu',
'Asia/Thimphu',
'Asia/Tokyo',
'Asia/Tomsk',
'Asia/Ujung_Pandang',
'Asia/Ulaanbaatar',
'Asia/Ulan_Bator',
@@ -810,6 +845,7 @@ all_timezones = \
'Asia/Vientiane',
'Asia/Vladivostok',
'Asia/Yakutsk',
'Asia/Yangon',
'Asia/Yekaterinburg',
'Asia/Yerevan',
'Atlantic/Azores',
@@ -855,7 +891,6 @@ all_timezones = \
'CST6CDT',
'Canada/Atlantic',
'Canada/Central',
'Canada/East-Saskatchewan',
'Canada/Eastern',
'Canada/Mountain',
'Canada/Newfoundland',
@@ -907,6 +942,7 @@ all_timezones = \
'Etc/Zulu',
'Europe/Amsterdam',
'Europe/Andorra',
'Europe/Astrakhan',
'Europe/Athens',
'Europe/Belfast',
'Europe/Belgrade',
@@ -927,6 +963,7 @@ all_timezones = \
'Europe/Jersey',
'Europe/Kaliningrad',
'Europe/Kiev',
'Europe/Kirov',
'Europe/Lisbon',
'Europe/Ljubljana',
'Europe/London',
@@ -947,6 +984,7 @@ all_timezones = \
'Europe/Samara',
'Europe/San_Marino',
'Europe/Sarajevo',
'Europe/Saratov',
'Europe/Simferopol',
'Europe/Skopje',
'Europe/Sofia',
@@ -954,6 +992,7 @@ all_timezones = \
'Europe/Tallinn',
'Europe/Tirane',
'Europe/Tiraspol',
'Europe/Ulyanovsk',
'Europe/Uzhgorod',
'Europe/Vaduz',
'Europe/Vatican',
@@ -1019,6 +1058,7 @@ all_timezones = \
'Pacific/Guam',
'Pacific/Honolulu',
'Pacific/Johnston',
'Pacific/Kanton',
'Pacific/Kiritimati',
'Pacific/Kosrae',
'Pacific/Kwajalein',
@@ -1063,7 +1103,6 @@ all_timezones = \
'US/Michigan',
'US/Mountain',
'US/Pacific',
'US/Pacific-New',
'US/Samoa',
'UTC',
'Universal',
@@ -1177,9 +1216,9 @@ common_timezones = \
'America/Edmonton',
'America/Eirunepe',
'America/El_Salvador',
'America/Fort_Nelson',
'America/Fortaleza',
'America/Glace_Bay',
'America/Godthab',
'America/Goose_Bay',
'America/Grand_Turk',
'America/Grenada',
@@ -1224,7 +1263,6 @@ common_timezones = \
'America/Moncton',
'America/Monterrey',
'America/Montevideo',
'America/Montreal',
'America/Montserrat',
'America/Nassau',
'America/New_York',
@@ -1234,6 +1272,7 @@ common_timezones = \
'America/North_Dakota/Beulah',
'America/North_Dakota/Center',
'America/North_Dakota/New_Salem',
'America/Nuuk',
'America/Ojinaga',
'America/Panama',
'America/Pangnirtung',
@@ -1243,13 +1282,13 @@ common_timezones = \
'America/Port_of_Spain',
'America/Porto_Velho',
'America/Puerto_Rico',
'America/Punta_Arenas',
'America/Rainy_River',
'America/Rankin_Inlet',
'America/Recife',
'America/Regina',
'America/Resolute',
'America/Rio_Branco',
'America/Santa_Isabel',
'America/Santarem',
'America/Santiago',
'America/Santo_Domingo',
@@ -1293,10 +1332,12 @@ common_timezones = \
'Asia/Aqtau',
'Asia/Aqtobe',
'Asia/Ashgabat',
'Asia/Atyrau',
'Asia/Baghdad',
'Asia/Bahrain',
'Asia/Baku',
'Asia/Bangkok',
'Asia/Barnaul',
'Asia/Beirut',
'Asia/Bishkek',
'Asia/Brunei',
@@ -1308,6 +1349,7 @@ common_timezones = \
'Asia/Dili',
'Asia/Dubai',
'Asia/Dushanbe',
'Asia/Famagusta',
'Asia/Gaza',
'Asia/Hebron',
'Asia/Ho_Chi_Minh',
@@ -1341,8 +1383,8 @@ common_timezones = \
'Asia/Pontianak',
'Asia/Pyongyang',
'Asia/Qatar',
'Asia/Qostanay',
'Asia/Qyzylorda',
'Asia/Rangoon',
'Asia/Riyadh',
'Asia/Sakhalin',
'Asia/Samarkand',
@@ -1356,12 +1398,14 @@ common_timezones = \
'Asia/Tehran',
'Asia/Thimphu',
'Asia/Tokyo',
'Asia/Tomsk',
'Asia/Ulaanbaatar',
'Asia/Urumqi',
'Asia/Ust-Nera',
'Asia/Vientiane',
'Asia/Vladivostok',
'Asia/Yakutsk',
'Asia/Yangon',
'Asia/Yekaterinburg',
'Asia/Yerevan',
'Atlantic/Azores',
@@ -1377,7 +1421,6 @@ common_timezones = \
'Australia/Adelaide',
'Australia/Brisbane',
'Australia/Broken_Hill',
'Australia/Currie',
'Australia/Darwin',
'Australia/Eucla',
'Australia/Hobart',
@@ -1394,6 +1437,7 @@ common_timezones = \
'Canada/Pacific',
'Europe/Amsterdam',
'Europe/Andorra',
'Europe/Astrakhan',
'Europe/Athens',
'Europe/Belgrade',
'Europe/Berlin',
@@ -1413,6 +1457,7 @@ common_timezones = \
'Europe/Jersey',
'Europe/Kaliningrad',
'Europe/Kiev',
'Europe/Kirov',
'Europe/Lisbon',
'Europe/Ljubljana',
'Europe/London',
@@ -1432,12 +1477,14 @@ common_timezones = \
'Europe/Samara',
'Europe/San_Marino',
'Europe/Sarajevo',
'Europe/Saratov',
'Europe/Simferopol',
'Europe/Skopje',
'Europe/Sofia',
'Europe/Stockholm',
'Europe/Tallinn',
'Europe/Tirane',
'Europe/Ulyanovsk',
'Europe/Uzhgorod',
'Europe/Vaduz',
'Europe/Vatican',
@@ -1467,7 +1514,6 @@ common_timezones = \
'Pacific/Chuuk',
'Pacific/Easter',
'Pacific/Efate',
'Pacific/Enderbury',
'Pacific/Fakaofo',
'Pacific/Fiji',
'Pacific/Funafuti',
@@ -1476,7 +1522,7 @@ common_timezones = \
'Pacific/Guadalcanal',
'Pacific/Guam',
'Pacific/Honolulu',
'Pacific/Johnston',
'Pacific/Kanton',
'Pacific/Kiritimati',
'Pacific/Kosrae',
'Pacific/Kwajalein',