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EDIT :: req_set.py

import logging from collections import OrderedDict from typing import Dict, List from pip._vendor.packaging.specifiers import LegacySpecifier from pip._vendor.packaging.utils import canonicalize_name from pip._vendor.packaging.version import LegacyVersion from pip._internal.req.req_install import InstallRequirement from pip._internal.utils.deprecation import deprecated logger = logging.getLogger(__name__) class RequirementSet: def __init__(self, check_supported_wheels: bool = True) -> None: """Create a RequirementSet.""" self.requirements: Dict[str, InstallRequirement] = OrderedDict() self.check_supported_wheels = check_supported_wheels self.unnamed_requirements: List[InstallRequirement] = [] def __str__(self) -> str: requirements = sorted( (req for req in self.requirements.values() if not req.comes_from), key=lambda req: canonicalize_name(req.name or ""), ) return " ".join(str(req.req) for req in requirements) def __repr__(self) -> str: requirements = sorted( self.requirements.values(), key=lambda req: canonicalize_name(req.name or ""), ) format_string = "<{classname} object; {count} requirement(s): {reqs}>" return format_string.format( classname=self.__class__.__name__, count=len(requirements), reqs=", ".join(str(req.req) for req in requirements), ) def add_unnamed_requirement(self, install_req: InstallRequirement) -> None: assert not install_req.name self.unnamed_requirements.append(install_req) def add_named_requirement(self, install_req: InstallRequirement) -> None: assert install_req.name project_name = canonicalize_name(install_req.name) self.requirements[project_name] = install_req def has_requirement(self, name: str) -> bool: project_name = canonicalize_name(name) return ( project_name in self.requirements and not self.requirements[project_name].constraint ) def get_requirement(self, name: str) -> InstallRequirement: project_name = canonicalize_name(name) if project_name in self.requirements: return self.requirements[project_name] raise KeyError(f"No project with the name {name!r}") @property def all_requirements(self) -> List[InstallRequirement]: return self.unnamed_requirements + list(self.requirements.values()) @property def requirements_to_install(self) -> List[InstallRequirement]: """Return the list of requirements that need to be installed. TODO remove this property together with the legacy resolver, since the new resolver only returns requirements that need to be installed. """ return [ install_req for install_req in self.all_requirements if not install_req.constraint and not install_req.satisfied_by ] def warn_legacy_versions_and_specifiers(self) -> None: for req in self.requirements_to_install: version = req.get_dist().version if isinstance(version, LegacyVersion): deprecated( reason=( f"pip has selected the non standard version {version} " f"of {req}. In the future this version will be " f"ignored as it isn't standard compliant." ), replacement=( "set or update constraints to select another version " "or contact the package author to fix the version number" ), issue=12063, gone_in="24.0", ) for dep in req.get_dist().iter_dependencies(): if any(isinstance(spec, LegacySpecifier) for spec in dep.specifier): deprecated( reason=( f"pip has selected {req} {version} which has non " f"standard dependency specifier {dep}. " f"In the future this version of {req} will be " f"ignored as it isn't standard compliant." ), replacement=( "set or update constraints to select another version " "or contact the package author to fix the version number" ), issue=12063, gone_in="24.0", )

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