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53 lines
1.5 KiB
Python
53 lines
1.5 KiB
Python
5 years ago
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from pip._vendor.packaging.utils import canonicalize_name
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from pip._internal.utils.typing import MYPY_CHECK_RUNNING
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if MYPY_CHECK_RUNNING:
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from typing import Optional, Sequence, Set
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from pip._internal.req.req_install import InstallRequirement
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from pip._vendor.packaging.version import _BaseVersion
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def format_name(project, extras):
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# type: (str, Set[str]) -> str
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if not extras:
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return project
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canonical_extras = sorted(canonicalize_name(e) for e in extras)
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return "{}[{}]".format(project, ",".join(canonical_extras))
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class Requirement(object):
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@property
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def name(self):
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# type: () -> str
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raise NotImplementedError("Subclass should override")
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def find_matches(self):
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# type: () -> Sequence[Candidate]
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raise NotImplementedError("Subclass should override")
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def is_satisfied_by(self, candidate):
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# type: (Candidate) -> bool
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return False
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class Candidate(object):
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@property
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def name(self):
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# type: () -> str
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raise NotImplementedError("Override in subclass")
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@property
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def version(self):
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# type: () -> _BaseVersion
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raise NotImplementedError("Override in subclass")
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def get_dependencies(self):
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# type: () -> Sequence[Requirement]
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raise NotImplementedError("Override in subclass")
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def get_install_requirement(self):
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# type: () -> Optional[InstallRequirement]
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raise NotImplementedError("Override in subclass")
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