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bazarr/libs/pytz_deprecation_shim/_exceptions.py

75 lines
2 KiB
Python

from ._common import pytz_imported
class PytzUsageWarning(RuntimeWarning):
"""Warning raised when accessing features specific to ``pytz``'s interface.
This warning is used to direct users of ``pytz``-specific features like the
``localize`` and ``normalize`` methods towards using the standard
``tzinfo`` interface, so that these shims can be replaced with one of the
underlying libraries they are wrapping.
"""
class UnknownTimeZoneError(KeyError):
"""Raised when no time zone is found for a specified key."""
class InvalidTimeError(Exception):
"""The base class for exceptions related to folds and gaps."""
class AmbiguousTimeError(InvalidTimeError):
"""Exception raised when ``is_dst=None`` for an ambiguous time (fold)."""
class NonExistentTimeError(InvalidTimeError):
"""Exception raised when ``is_dst=None`` for a non-existent time (gap)."""
PYTZ_BASE_ERROR_MAPPING = {}
def _make_pytz_derived_errors(
InvalidTimeError_=InvalidTimeError,
AmbiguousTimeError_=AmbiguousTimeError,
NonExistentTimeError_=NonExistentTimeError,
UnknownTimeZoneError_=UnknownTimeZoneError,
):
if PYTZ_BASE_ERROR_MAPPING or not pytz_imported():
return
import pytz
class InvalidTimeError(InvalidTimeError_, pytz.InvalidTimeError):
pass
class AmbiguousTimeError(AmbiguousTimeError_, pytz.AmbiguousTimeError):
pass
class NonExistentTimeError(
NonExistentTimeError_, pytz.NonExistentTimeError
):
pass
class UnknownTimeZoneError(
UnknownTimeZoneError_, pytz.UnknownTimeZoneError
):
pass
PYTZ_BASE_ERROR_MAPPING.update(
{
InvalidTimeError_: InvalidTimeError,
AmbiguousTimeError_: AmbiguousTimeError,
NonExistentTimeError_: NonExistentTimeError,
UnknownTimeZoneError_: UnknownTimeZoneError,
}
)
def get_exception(exc_type, msg):
_make_pytz_derived_errors()
out_exc_type = PYTZ_BASE_ERROR_MAPPING.get(exc_type, exc_type)
return out_exc_type(msg)