18 lines
502 B
Python
18 lines
502 B
Python
import sys
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from contextlib import contextmanager
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from typing import Iterator
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if sys.version_info < (3, 6):
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from collections import OrderedDict as OrderedDict # noqa: F401
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else:
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# OrderedDict is kind of slow, so for most of our uses in Python 3.6
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# and later we'd rather just use dict
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OrderedDict = dict
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if sys.version_info < (3, 7):
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@contextmanager
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def nullcontext() -> Iterator[None]:
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yield
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else:
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from contextlib import nullcontext as nullcontext # noqa: F401
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