mirror of https://github.com/pypa/pip
25 lines
927 B
Python
25 lines
927 B
Python
import sys
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try:
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# Our match_hostname function is the same as 3.10's, so we only want to
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# import the match_hostname function if it's at least that good.
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# We also fallback on Python 3.10+ because our code doesn't emit
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# deprecation warnings and is the same as Python 3.10 otherwise.
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if sys.version_info < (3, 5) or sys.version_info >= (3, 10):
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raise ImportError("Fallback to vendored code")
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from ssl import CertificateError, match_hostname
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except ImportError:
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try:
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# Backport of the function from a pypi module
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from backports.ssl_match_hostname import ( # type: ignore
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CertificateError,
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match_hostname,
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)
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except ImportError:
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# Our vendored copy
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from ._implementation import CertificateError, match_hostname # type: ignore
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# Not needed, but documenting what we provide.
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__all__ = ("CertificateError", "match_hostname")
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