def _identify_candidate(self, candidate: Candidate) -> tuple:
url = getattr(candidate.req, "url", None)
return (
candidate.identify(),
candidate.version if not url else None,
url_without_fragments(url) if url else None,
candidate.req.editable,
)
def is_satisfied_by(self, requirement: Requirement,
candidate: Candidate) -> bool:
if isinstance(requirement, PythonRequirement):
return is_python_satisfied_by(requirement, candidate)
elif candidate.identify() in self.overrides:
return True
if not requirement.is_named:
return not candidate.req.is_named and url_without_fragments(
candidate.req.url) == url_without_fragments(requirement.url)
version = candidate.version or candidate.metadata.version
# Allow prereleases if: 1) it is not specified in the tool settings or
# 2) the candidate doesn't come from PyPI index.
allow_prereleases = (self.allow_prereleases in (True, None)
or not candidate.req.is_named)
return requirement.specifier.contains(version, allow_prereleases)
