| from pip._vendor.packaging.version import parse as parse_version |
| |
| from pip._internal.utils.models import KeyBasedCompareMixin |
| from pip._internal.utils.typing import MYPY_CHECK_RUNNING |
| |
| if MYPY_CHECK_RUNNING: |
| from pip._vendor.packaging.version import _BaseVersion |
| from pip._internal.models.link import Link |
| |
| |
| class InstallationCandidate(KeyBasedCompareMixin): |
| """Represents a potential "candidate" for installation. |
| """ |
| |
| __slots__ = ["name", "version", "link"] |
| |
| def __init__(self, name, version, link): |
| # type: (str, str, Link) -> None |
| self.name = name |
| self.version = parse_version(version) # type: _BaseVersion |
| self.link = link |
| |
| super(InstallationCandidate, self).__init__( |
| key=(self.name, self.version, self.link), |
| defining_class=InstallationCandidate |
| ) |
| |
| def __repr__(self): |
| # type: () -> str |
| return "<InstallationCandidate({!r}, {!r}, {!r})>".format( |
| self.name, self.version, self.link, |
| ) |
| |
| def __str__(self): |
| # type: () -> str |
| return '{!r} candidate (version {} at {})'.format( |
| self.name, self.version, self.link, |
| ) |
