Update pytz-2021.3

lib/pytz/__init__.py

@@ -22,8 +22,8 @@ from pytz.tzfile import build_tzinfo
 
 
 # The IANA (nee Olson) database is updated several times a year.
-OLSON_VERSION = '2019c'
-VERSION = '2019.3'  # pip compatible version number.
+OLSON_VERSION = '2021c'
+VERSION = '2021.3'  # pip compatible version number.
 __version__ = VERSION
 
 OLSEN_VERSION = OLSON_VERSION  # Old releases had this misspelling
@@ -34,7 +34,7 @@ __all__ = [
     'NonExistentTimeError', 'UnknownTimeZoneError',
     'all_timezones', 'all_timezones_set',
     'common_timezones', 'common_timezones_set',
-    'BaseTzInfo',
+    'BaseTzInfo', 'FixedOffset',
 ]
 
 
@@ -111,6 +111,13 @@ def open_resource(name):
 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:
@@ -263,8 +270,8 @@ def _UTC():
     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)
@@ -683,6 +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',
@@ -1050,6 +1058,7 @@ all_timezones = \
  'Pacific/Guam',
  'Pacific/Honolulu',
  'Pacific/Johnston',
+ 'Pacific/Kanton',
  'Pacific/Kiritimati',
  'Pacific/Kosrae',
  'Pacific/Kwajalein',
@@ -1210,7 +1219,6 @@ common_timezones = \
  'America/Fort_Nelson',
  'America/Fortaleza',
  'America/Glace_Bay',
- 'America/Godthab',
  'America/Goose_Bay',
  'America/Grand_Turk',
  'America/Grenada',
@@ -1264,6 +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',
@@ -1412,7 +1421,6 @@ common_timezones = \
  'Australia/Adelaide',
  'Australia/Brisbane',
  'Australia/Broken_Hill',
- 'Australia/Currie',
  'Australia/Darwin',
  'Australia/Eucla',
  'Australia/Hobart',
@@ -1506,7 +1514,6 @@ common_timezones = \
  'Pacific/Chuuk',
  'Pacific/Easter',
  'Pacific/Efate',
- 'Pacific/Enderbury',
  'Pacific/Fakaofo',
  'Pacific/Fiji',
  'Pacific/Funafuti',
@@ -1515,6 +1522,7 @@ common_timezones = \
  'Pacific/Guadalcanal',
  'Pacific/Guam',
  'Pacific/Honolulu',
+ 'Pacific/Kanton',
  'Pacific/Kiritimati',
  'Pacific/Kosrae',
  'Pacific/Kwajalein',

lib/pytz/exceptions.py

@@ -8,7 +8,11 @@ __all__ = [
 ]
 
 
-class UnknownTimeZoneError(KeyError):
+class Error(Exception):
+    '''Base class for all exceptions raised by the pytz library'''
+
+
+class UnknownTimeZoneError(KeyError, Error):
     '''Exception raised when pytz is passed an unknown timezone.
 
     >>> isinstance(UnknownTimeZoneError(), LookupError)
@@ -20,11 +24,18 @@ class UnknownTimeZoneError(KeyError):
 
     >>> isinstance(UnknownTimeZoneError(), KeyError)
     True
+
+    And also a subclass of pytz.exceptions.Error, as are other pytz
+    exceptions.
+
+    >>> isinstance(UnknownTimeZoneError(), Error)
+    True
+
     '''
     pass
 
 
-class InvalidTimeError(Exception):
+class InvalidTimeError(Error):
     '''Base class for invalid time exceptions.'''
 
 

lib/pytz/tests/test_docs.py

@@ -7,12 +7,12 @@ import sys
 
 THIS_DIR = os.path.dirname(__file__)
 
-README = os.path.join(THIS_DIR, os.pardir, os.pardir, 'README.txt')
+README = os.path.join(THIS_DIR, os.pardir, os.pardir, 'README.rst')
 
 
 class DocumentationTestCase(unittest.TestCase):
     def test_readme_encoding(self):
-        '''Confirm the README.txt is pure ASCII.'''
+        '''Confirm the README.rst is ASCII.'''
         f = open(README, 'rb')
         try:
             f.read().decode('ASCII')
@@ -24,7 +24,7 @@ def test_suite():
     "For the Z3 test runner"
     return unittest.TestSuite((
         DocumentationTestCase('test_readme_encoding'),
-        DocFileSuite(os.path.join(os.pardir, os.pardir, 'README.txt'))))
+        DocFileSuite(os.path.join(os.pardir, os.pardir, 'README.rst'))))
 
 
 if __name__ == '__main__':

lib/pytz/tests/test_tzinfo.py

@@ -27,8 +27,8 @@ from pytz.tzinfo import DstTzInfo, StaticTzInfo  # noqa
 
 # I test for expected version to ensure the correct version of pytz is
 # actually being tested.
-EXPECTED_VERSION = '2019.3'
-EXPECTED_OLSON_VERSION = '2019c'
+EXPECTED_VERSION = '2021.3'
+EXPECTED_OLSON_VERSION = '2021c'
 
 fmt = '%Y-%m-%d %H:%M:%S %Z%z'
 
@@ -859,6 +859,7 @@ def test_suite():
     suite = unittest.TestSuite()
     suite.addTest(doctest.DocTestSuite('pytz'))
     suite.addTest(doctest.DocTestSuite('pytz.tzinfo'))
+    suite.addTest(doctest.DocTestSuite('pytz.exceptions'))
     import test_tzinfo
     suite.addTest(unittest.defaultTestLoader.loadTestsFromModule(test_tzinfo))
     return suite

lib/pytz/tzfile.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 '''
 $Id: tzfile.py,v 1.8 2004/06/03 00:15:24 zenzen Exp $
 '''