C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// from dataclasses import dataclass from typing import FrozenSet, Iterable, Optional, Tuple from pip._vendor.packaging.specifiers import SpecifierSet from pip._vendor.packaging.utils import NormalizedName from pip._vendor.packaging.version import Version from pip._internal.models.link import Link, links_equivalent from pip._internal.req.req_install import InstallRequirement from pip._internal.utils.hashes import Hashes CandidateLookup = Tuple[Optional["Candidate"], Optional[InstallRequirement]] def format_name(project: NormalizedName, extras: FrozenSet[NormalizedName]) -> str: if not extras: return project extras_expr = ",".join(sorted(extras)) return f"{project}[{extras_expr}]" @dataclass(frozen=True) class Constraint: specifier: SpecifierSet hashes: Hashes links: FrozenSet[Link] @classmethod def empty(cls) -> "Constraint": return Constraint(SpecifierSet(), Hashes(), frozenset()) @classmethod def from_ireq(cls, ireq: InstallRequirement) -> "Constraint": links = frozenset([ireq.link]) if ireq.link else frozenset() return Constraint(ireq.specifier, ireq.hashes(trust_internet=False), links) def __bool__(self) -> bool: return bool(self.specifier) or bool(self.hashes) or bool(self.links) def __and__(self, other: InstallRequirement) -> "Constraint": if not isinstance(other, InstallRequirement): return NotImplemented specifier = self.specifier & other.specifier hashes = self.hashes & other.hashes(trust_internet=False) links = self.links if other.link: links = links.union([other.link]) return Constraint(specifier, hashes, links) def is_satisfied_by(self, candidate: "Candidate") -> bool: # Reject if there are any mismatched URL constraints on this package. if self.links and not all(_match_link(link, candidate) for link in self.links): return False # We can safely always allow prereleases here since PackageFinder # already implements the prerelease logic, and would have filtered out # prerelease candidates if the user does not expect them. return self.specifier.contains(candidate.version, prereleases=True) class Requirement: @property def project_name(self) -> NormalizedName: """The "project name" of a requirement. This is different from ``name`` if this requirement contains extras, in which case ``name`` would contain the ``[...]`` part, while this refers to the name of the project. """ raise NotImplementedError("Subclass should override") @property def name(self) -> str: """The name identifying this requirement in the resolver. This is different from ``project_name`` if this requirement contains extras, where ``project_name`` would not contain the ``[...]`` part. """ raise NotImplementedError("Subclass should override") def is_satisfied_by(self, candidate: "Candidate") -> bool: return False def get_candidate_lookup(self) -> CandidateLookup: raise NotImplementedError("Subclass should override") def format_for_error(self) -> str: raise Not