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https://github.com/morpheus65535/bazarr
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34 lines
886 B
Python
34 lines
886 B
Python
# Copyright 2009-2022 Joshua Bronson. All rights reserved.
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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"""Provide typing-related objects."""
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import typing as t
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from enum import Enum
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KT = t.TypeVar('KT')
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VT = t.TypeVar('VT')
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IterItems = t.Iterable[t.Tuple[KT, VT]]
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MapOrIterItems = t.Union[t.Mapping[KT, VT], IterItems[KT, VT]]
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class MissingT(Enum):
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"""Sentinel used to represent none/missing when None itself can't be used."""
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MISSING = 'MISSING'
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def __repr__(self) -> str:
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return '<MISSING>'
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MISSING = MissingT.MISSING
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OKT = t.Union[KT, MissingT] #: optional key type
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OVT = t.Union[VT, MissingT] #: optional value type
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DT = t.TypeVar('DT') #: for default arguments
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ODT = t.Union[DT, MissingT]
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