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Fix for handling of version ranges #645

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Fix for handling of version ranges #645

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2 changes: 1 addition & 1 deletion src/poetry/core/constraints/version/version_range_constraint.py
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Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,7 @@ def allowed_max(self) -> Version | None:
# The exclusive ordered comparison <V MUST NOT allow a pre-release
# of the specified version unless the specified version is itself a pre-release.
# https://peps.python.org/pep-0440/#exclusive-ordered-comparison
return self.max.first_devrelease()
return self.max.before_first_devrelease()

def allows_lower(self, other: VersionRangeConstraint) -> bool:
_this, _other = self.allowed_min, other.allowed_min
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9 changes: 9 additions & 0 deletions src/poetry/core/version/pep440/version.py
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Expand Up @@ -297,6 +297,15 @@ def first_prerelease(self: T) -> T:
pre=ReleaseTag(RELEASE_PHASE_ID_ALPHA),
)

def before_first_devrelease(self: T) -> T:
return self.__class__(
epoch=self.epoch,
release=self.release,
pre=self.pre,
post=self.post,
dev=_NEG_INF_TAG,
)

def first_devrelease(self: T) -> T:
return self.__class__(
epoch=self.epoch,
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