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- from pip._vendor.packaging.utils import canonicalize_name
- from pip._internal.utils.typing import MYPY_CHECK_RUNNING
- from .base import Requirement, format_name
- if MYPY_CHECK_RUNNING:
- from typing import Sequence
- from pip._vendor.packaging.specifiers import SpecifierSet
- from pip._internal.req.req_install import InstallRequirement
- from .base import Candidate
- from .factory import Factory
- class ExplicitRequirement(Requirement):
- def __init__(self, candidate):
-
- self.candidate = candidate
- def __repr__(self):
-
- return "{class_name}({candidate!r})".format(
- class_name=self.__class__.__name__,
- candidate=self.candidate,
- )
- @property
- def name(self):
-
-
- return self.candidate.name
- def find_matches(self):
-
- return [self.candidate]
- def is_satisfied_by(self, candidate):
-
- return candidate == self.candidate
- class SpecifierRequirement(Requirement):
- def __init__(self, ireq, factory):
-
- assert ireq.link is None, "This is a link, not a specifier"
- self._ireq = ireq
- self._factory = factory
- self.extras = ireq.req.extras
- def __str__(self):
-
- return str(self._ireq.req)
- def __repr__(self):
-
- return "{class_name}({requirement!r})".format(
- class_name=self.__class__.__name__,
- requirement=str(self._ireq.req),
- )
- @property
- def name(self):
-
- canonical_name = canonicalize_name(self._ireq.req.name)
- return format_name(canonical_name, self.extras)
- def find_matches(self):
-
- it = self._factory.iter_found_candidates(self._ireq, self.extras)
- return list(it)
- def is_satisfied_by(self, candidate):
-
- assert candidate.name == self.name, \
- "Internal issue: Candidate is not for this requirement " \
- " {} vs {}".format(candidate.name, self.name)
-
-
-
- spec = self._ireq.req.specifier
- return spec.contains(candidate.version, prereleases=True)
- class RequiresPythonRequirement(Requirement):
- """A requirement representing Requires-Python metadata.
- """
- def __init__(self, specifier, match):
-
- self.specifier = specifier
- self._candidate = match
- def __repr__(self):
-
- return "{class_name}({specifier!r})".format(
- class_name=self.__class__.__name__,
- specifier=str(self.specifier),
- )
- @property
- def name(self):
-
- return self._candidate.name
- def find_matches(self):
-
- if self._candidate.version in self.specifier:
- return [self._candidate]
- return []
- def is_satisfied_by(self, candidate):
-
- assert candidate.name == self._candidate.name, "Not Python candidate"
-
-
-
- return self.specifier.contains(candidate.version, prereleases=True)
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