mirror of
https://github.com/pypa/pip
synced 2023-12-13 21:30:23 +01:00
54 lines
1.6 KiB
Python
54 lines
1.6 KiB
Python
from pip._vendor.packaging.utils import canonicalize_name
|
|
|
|
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
|
|
|
|
if MYPY_CHECK_RUNNING:
|
|
from typing import Optional, Sequence, Set
|
|
|
|
from pip._internal.req.req_install import InstallRequirement
|
|
from pip._vendor.packaging.specifiers import SpecifierSet
|
|
from pip._vendor.packaging.version import _BaseVersion
|
|
|
|
|
|
def format_name(project, extras):
|
|
# type: (str, Set[str]) -> str
|
|
if not extras:
|
|
return project
|
|
canonical_extras = sorted(canonicalize_name(e) for e in extras)
|
|
return "{}[{}]".format(project, ",".join(canonical_extras))
|
|
|
|
|
|
class Requirement(object):
|
|
@property
|
|
def name(self):
|
|
# type: () -> str
|
|
raise NotImplementedError("Subclass should override")
|
|
|
|
def find_matches(self, constraints):
|
|
# type: (Sequence[SpecifierSet]) -> Sequence[Candidate]
|
|
raise NotImplementedError("Subclass should override")
|
|
|
|
def is_satisfied_by(self, candidate):
|
|
# type: (Candidate) -> bool
|
|
return False
|
|
|
|
|
|
class Candidate(object):
|
|
@property
|
|
def name(self):
|
|
# type: () -> str
|
|
raise NotImplementedError("Override in subclass")
|
|
|
|
@property
|
|
def version(self):
|
|
# type: () -> _BaseVersion
|
|
raise NotImplementedError("Override in subclass")
|
|
|
|
def get_dependencies(self):
|
|
# type: () -> Sequence[Requirement]
|
|
raise NotImplementedError("Override in subclass")
|
|
|
|
def get_install_requirement(self):
|
|
# type: () -> Optional[InstallRequirement]
|
|
raise NotImplementedError("Override in subclass")
|