Fullscreen eingestellt.

.venv/Lib/site-packages/pip/_internal/index/collector.py

@@ -11,10 +11,10 @@ import logging
 import os
 import urllib.parse
 import urllib.request
+from dataclasses import dataclass
 from html.parser import HTMLParser
 from optparse import Values
 from typing import (
-    TYPE_CHECKING,
     Callable,
     Dict,
     Iterable,
@@ -22,6 +22,7 @@ from typing import (
     MutableMapping,
     NamedTuple,
     Optional,
+    Protocol,
     Sequence,
     Tuple,
     Union,
@@ -42,11 +43,6 @@ from pip._internal.vcs import vcs
 
 from .sources import CandidatesFromPage, LinkSource, build_source
 
-if TYPE_CHECKING:
-    from typing import Protocol
-else:
-    Protocol = object
-
 logger = logging.getLogger(__name__)
 
 ResponseHeaders = MutableMapping[str, str]
@@ -201,8 +197,7 @@ class CacheablePageContent:
 
 
 class ParseLinks(Protocol):
-    def __call__(self, page: "IndexContent") -> Iterable[Link]:
-        ...
+    def __call__(self, page: "IndexContent") -> Iterable[Link]: ...
 
 
 def with_cached_index_content(fn: ParseLinks) -> ParseLinks:
@@ -254,29 +249,22 @@ def parse_links(page: "IndexContent") -> Iterable[Link]:
         yield link
 
 
+@dataclass(frozen=True)
 class IndexContent:
-    """Represents one response (or page), along with its URL"""
+    """Represents one response (or page), along with its URL.
 
-    def __init__(
-        self,
-        content: bytes,
-        content_type: str,
-        encoding: Optional[str],
-        url: str,
-        cache_link_parsing: bool = True,
-    ) -> None:
-        """
-        :param encoding: the encoding to decode the given content.
-        :param url: the URL from which the HTML was downloaded.
-        :param cache_link_parsing: whether links parsed from this page's url
-                                   should be cached. PyPI index urls should
-                                   have this set to False, for example.
-        """
-        self.content = content
-        self.content_type = content_type
-        self.encoding = encoding
-        self.url = url
-        self.cache_link_parsing = cache_link_parsing
+    :param encoding: the encoding to decode the given content.
+    :param url: the URL from which the HTML was downloaded.
+    :param cache_link_parsing: whether links parsed from this page's url
+                               should be cached. PyPI index urls should
+                               have this set to False, for example.
+    """
+
+    content: bytes
+    content_type: str
+    encoding: Optional[str]
+    url: str
+    cache_link_parsing: bool = True
 
     def __str__(self) -> str:
         return redact_auth_from_url(self.url)
@@ -400,7 +388,6 @@ class CollectedSources(NamedTuple):
 
 
 class LinkCollector:
-
     """
     Responsible for collecting Link objects from all configured locations,
     making network requests as needed.

.venv/Lib/site-packages/pip/_internal/index/package_finder.py

@@ -5,12 +5,13 @@ import functools
 import itertools
 import logging
 import re
+from dataclasses import dataclass
 from typing import TYPE_CHECKING, FrozenSet, Iterable, List, Optional, Set, Tuple, Union
 
 from pip._vendor.packaging import specifiers
 from pip._vendor.packaging.tags import Tag
 from pip._vendor.packaging.utils import canonicalize_name
-from pip._vendor.packaging.version import _BaseVersion
+from pip._vendor.packaging.version import InvalidVersion, _BaseVersion
 from pip._vendor.packaging.version import parse as parse_version
 
 from pip._internal.exceptions import (
@@ -106,7 +107,6 @@ class LinkType(enum.Enum):
 
 
 class LinkEvaluator:
-
     """
     Responsible for evaluating links for a particular project.
     """
@@ -323,23 +323,15 @@ def filter_unallowed_hashes(
     return filtered
 
 
+@dataclass
 class CandidatePreferences:
-
     """
     Encapsulates some of the preferences for filtering and sorting
     InstallationCandidate objects.
     """
 
-    def __init__(
-        self,
-        prefer_binary: bool = False,
-        allow_all_prereleases: bool = False,
-    ) -> None:
-        """
-        :param allow_all_prereleases: Whether to allow all pre-releases.
-        """
-        self.allow_all_prereleases = allow_all_prereleases
-        self.prefer_binary = prefer_binary
+    prefer_binary: bool = False
+    allow_all_prereleases: bool = False
 
 
 class BestCandidateResult:
@@ -383,7 +375,6 @@ class BestCandidateResult:
 
 
 class CandidateEvaluator:
-
     """
     Responsible for filtering and sorting candidates for installation based
     on what tags are valid.
@@ -761,11 +752,14 @@ class PackageFinder:
             self._log_skipped_link(link, result, detail)
             return None
 
-        return InstallationCandidate(
-            name=link_evaluator.project_name,
-            link=link,
-            version=detail,
-        )
+        try:
+            return InstallationCandidate(
+                name=link_evaluator.project_name,
+                link=link,
+                version=detail,
+            )
+        except InvalidVersion:
+            return None
 
     def evaluate_links(
         self, link_evaluator: LinkEvaluator, links: Iterable[Link]