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This module holds two different tzinfo implementations that can be used as
the 'tzinfo' argument to datetime constructors, directly passed to psycopg
functions or used to set the .tzinfo_factory attribute in cursors.
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�FixedOffsetTimezonea� Fixed offset in minutes east from UTC.
This is exactly the implementation__ found in Python 2.3.x documentation,
with a small change to the `!__init__()` method to allow for pickling
and a default name in the form ``sHH:MM`` (``s`` is the sign.).
The implementation also caches instances. During creation, if a
FixedOffsetTimezone instance has previously been created with the same
offset and name that instance will be returned. This saves memory and
improves comparability.
.. versionchanged:: 2.9
The constructor can take either a timedelta or a number of minutes of
offset. Previously only minutes were supported.
.. __: https://docs.python.org/library/datetime.html
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LocalTimezoneznPlatform idea of local timezone.
This is the exact implementation from the Python 2.3 documentation.
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