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Change venv

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Ambulance Clerc
2023-05-31 08:31:22 +02:00
parent fb6f579089
commit fdbb52c96f
466 changed files with 25899 additions and 64721 deletions
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138
venv/Lib/site-packages/pip/_internal/resolution/resolvelib/provider.py
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@@ -1,6 +1,15 @@
import collections
import math
from typing import TYPE_CHECKING, Dict, Iterable, Iterator, Mapping, Sequence, Union
from typing import (
TYPE_CHECKING,
Dict,
Iterable,
Iterator,
Mapping,
Sequence,
TypeVar,
Union,
)
from pip._vendor.resolvelib.providers import AbstractProvider
@@ -37,6 +46,35 @@ else:
# services to those objects (access to pip's finder and preparer).
D = TypeVar("D")
V = TypeVar("V")
def _get_with_identifier(
mapping: Mapping[str, V],
identifier: str,
default: D,
) -> Union[D, V]:
"""Get item from a package name lookup mapping with a resolver identifier.
This extra logic is needed when the target mapping is keyed by package
name, which cannot be directly looked up with an identifier (which may
contain requested extras). Additional logic is added to also look up a value
by "cleaning up" the extras from the identifier.
"""
if identifier in mapping:
return mapping[identifier]
# HACK: Theoretically we should check whether this identifier is a valid
# "NAME[EXTRAS]" format, and parse out the name part with packaging or
# some regular expression. But since pip's resolver only spits out three
# kinds of identifiers: normalized PEP 503 names, normalized names plus
# extras, and Requires-Python, we can cheat a bit here.
name, open_bracket, _ = identifier.partition("[")
if open_bracket and name in mapping:
return mapping[name]
return default
class PipProvider(_ProviderBase):
"""Pip's provider implementation for resolvelib.
@@ -71,28 +109,44 @@ class PipProvider(_ProviderBase):
identifier: str,
resolutions: Mapping[str, Candidate],
candidates: Mapping[str, Iterator[Candidate]],
information: Mapping[str, Iterator["PreferenceInformation"]],
information: Mapping[str, Iterable["PreferenceInformation"]],
backtrack_causes: Sequence["PreferenceInformation"],
) -> "Preference":
"""Produce a sort key for given requirement based on preference.
The lower the return value is, the more preferred this group of
arguments is.
Currently pip considers the followings in order:
Currently pip considers the following in order:
* Prefer if any of the known requirements is "direct", e.g. points to an
explicit URL.
* If equal, prefer if any requirement is "pinned", i.e. contains
operator ``===`` or ``==``.
* If equal, calculate an approximate "depth" and resolve requirements
closer to the user-specified requirements first.
closer to the user-specified requirements first. If the depth cannot
by determined (eg: due to no matching parents), it is considered
infinite.
* Order user-specified requirements by the order they are specified.
* If equal, prefers "non-free" requirements, i.e. contains at least one
operator, such as ``>=`` or ``<``.
* If equal, order alphabetically for consistency (helps debuggability).
"""
lookups = (r.get_candidate_lookup() for r, _ in information[identifier])
candidate, ireqs = zip(*lookups)
try:
next(iter(information[identifier]))
except StopIteration:
# There is no information for this identifier, so there's no known
# candidates.
has_information = False
else:
has_information = True
if has_information:
lookups = (r.get_candidate_lookup() for r, _ in information[identifier])
candidate, ireqs = zip(*lookups)
else:
candidate, ireqs = None, ()
operators = [
specifier.operator
for specifier_set in (ireq.specifier for ireq in ireqs if ireq)
@@ -107,14 +161,17 @@ class PipProvider(_ProviderBase):
requested_order: Union[int, float] = self._user_requested[identifier]
except KeyError:
requested_order = math.inf
parent_depths = (
self._known_depths[parent.name] if parent is not None else 0.0
for _, parent in information[identifier]
)
inferred_depth = min(d for d in parent_depths) + 1.0
self._known_depths[identifier] = inferred_depth
if has_information:
parent_depths = (
self._known_depths[parent.name] if parent is not None else 0.0
for _, parent in information[identifier]
)
inferred_depth = min(d for d in parent_depths) + 1.0
else:
inferred_depth = math.inf
else:
inferred_depth = 1.0
self._known_depths[identifier] = inferred_depth
requested_order = self._user_requested.get(identifier, math.inf)
@@ -122,49 +179,29 @@ class PipProvider(_ProviderBase):
# free, so we always do it first to avoid needless work if it fails.
requires_python = identifier == REQUIRES_PYTHON_IDENTIFIER
# HACK: Setuptools have a very long and solid backward compatibility
# track record, and extremely few projects would request a narrow,
# non-recent version range of it since that would break a lot things.
# (Most projects specify it only to request for an installer feature,
# which does not work, but that's another topic.) Intentionally
# delaying Setuptools helps reduce branches the resolver has to check.
# This serves as a temporary fix for issues like "apache-airlfow[all]"
# while we work on "proper" branch pruning techniques.
delay_this = identifier == "setuptools"
# Prefer the causes of backtracking on the assumption that the problem
# resolving the dependency tree is related to the failures that caused
# the backtracking
backtrack_cause = self.is_backtrack_cause(identifier, backtrack_causes)
return (
not requires_python,
delay_this,
not direct,
not pinned,
not backtrack_cause,
inferred_depth,
requested_order,
not unfree,
identifier,
)
def _get_constraint(self, identifier: str) -> Constraint:
if identifier in self._constraints:
return self._constraints[identifier]
# HACK: Theoratically we should check whether this identifier is a valid
# "NAME[EXTRAS]" format, and parse out the name part with packaging or
# some regular expression. But since pip's resolver only spits out
# three kinds of identifiers: normalized PEP 503 names, normalized names
# plus extras, and Requires-Python, we can cheat a bit here.
name, open_bracket, _ = identifier.partition("[")
if open_bracket and name in self._constraints:
return self._constraints[name]
return Constraint.empty()
def find_matches(
self,
identifier: str,
requirements: Mapping[str, Iterator[Requirement]],
incompatibilities: Mapping[str, Iterator[Candidate]],
) -> Iterable[Candidate]:
def _eligible_for_upgrade(name: str) -> bool:
def _eligible_for_upgrade(identifier: str) -> bool:
"""Are upgrades allowed for this project?
This checks the upgrade strategy, and whether the project was one
@@ -178,13 +215,23 @@ class PipProvider(_ProviderBase):
if self._upgrade_strategy == "eager":
return True
elif self._upgrade_strategy == "only-if-needed":
return name in self._user_requested
user_order = _get_with_identifier(
self._user_requested,
identifier,
default=None,
)
return user_order is not None
return False
constraint = _get_with_identifier(
self._constraints,
identifier,
default=Constraint.empty(),
)
return self._factory.find_candidates(
identifier=identifier,
requirements=requirements,
constraint=self._get_constraint(identifier),
constraint=constraint,
prefers_installed=(not _eligible_for_upgrade(identifier)),
incompatibilities=incompatibilities,
)
@@ -195,3 +242,14 @@ class PipProvider(_ProviderBase):
def get_dependencies(self, candidate: Candidate) -> Sequence[Requirement]:
with_requires = not self._ignore_dependencies
return [r for r in candidate.iter_dependencies(with_requires) if r is not None]
@staticmethod
def is_backtrack_cause(
identifier: str, backtrack_causes: Sequence["PreferenceInformation"]
) -> bool:
for backtrack_cause in backtrack_causes:
if identifier == backtrack_cause.requirement.name:
return True
if backtrack_cause.parent and identifier == backtrack_cause.parent.name:
return True
return False