Fullscreen eingestellt.

.venv/Lib/site-packages/pip/_internal/models/candidate.py

@@ -1,30 +1,25 @@
+from dataclasses import dataclass
+
+from pip._vendor.packaging.version import Version
 from pip._vendor.packaging.version import parse as parse_version
 
 from pip._internal.models.link import Link
-from pip._internal.utils.models import KeyBasedCompareMixin
 
 
-class InstallationCandidate(KeyBasedCompareMixin):
+@dataclass(frozen=True)
+class InstallationCandidate:
     """Represents a potential "candidate" for installation."""
 
     __slots__ = ["name", "version", "link"]
 
+    name: str
+    version: Version
+    link: Link
+
     def __init__(self, name: str, version: str, link: Link) -> None:
-        self.name = name
-        self.version = parse_version(version)
-        self.link = link
-
-        super().__init__(
-            key=(self.name, self.version, self.link),
-            defining_class=InstallationCandidate,
-        )
-
-    def __repr__(self) -> str:
-        return "<InstallationCandidate({!r}, {!r}, {!r})>".format(
-            self.name,
-            self.version,
-            self.link,
-        )
+        object.__setattr__(self, "name", name)
+        object.__setattr__(self, "version", parse_version(version))
+        object.__setattr__(self, "link", link)
 
     def __str__(self) -> str:
         return f"{self.name!r} candidate (version {self.version} at {self.link})"

.venv/Lib/site-packages/pip/_internal/models/direct_url.py

@@ -1,8 +1,10 @@
 """ PEP 610 """
+
 import json
 import re
 import urllib.parse
-from typing import Any, Dict, Iterable, Optional, Type, TypeVar, Union
+from dataclasses import dataclass
+from typing import Any, ClassVar, Dict, Iterable, Optional, Type, TypeVar, Union
 
 __all__ = [
     "DirectUrl",
@@ -64,18 +66,13 @@ def _filter_none(**kwargs: Any) -> Dict[str, Any]:
     return {k: v for k, v in kwargs.items() if v is not None}
 
 
+@dataclass
 class VcsInfo:
-    name = "vcs_info"
+    name: ClassVar = "vcs_info"
 
-    def __init__(
-        self,
-        vcs: str,
-        commit_id: str,
-        requested_revision: Optional[str] = None,
-    ) -> None:
-        self.vcs = vcs
-        self.requested_revision = requested_revision
-        self.commit_id = commit_id
+    vcs: str
+    commit_id: str
+    requested_revision: Optional[str] = None
 
     @classmethod
     def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["VcsInfo"]:
@@ -139,14 +136,11 @@ class ArchiveInfo:
         return _filter_none(hash=self.hash, hashes=self.hashes)
 
 
+@dataclass
 class DirInfo:
-    name = "dir_info"
+    name: ClassVar = "dir_info"
 
-    def __init__(
-        self,
-        editable: bool = False,
-    ) -> None:
-        self.editable = editable
+    editable: bool = False
 
     @classmethod
     def _from_dict(cls, d: Optional[Dict[str, Any]]) -> Optional["DirInfo"]:
@@ -161,16 +155,11 @@ class DirInfo:
 InfoType = Union[ArchiveInfo, DirInfo, VcsInfo]
 
 
+@dataclass
 class DirectUrl:
-    def __init__(
-        self,
-        url: str,
-        info: InfoType,
-        subdirectory: Optional[str] = None,
-    ) -> None:
-        self.url = url
-        self.info = info
-        self.subdirectory = subdirectory
+    url: str
+    info: InfoType
+    subdirectory: Optional[str] = None
 
     def _remove_auth_from_netloc(self, netloc: str) -> str:
         if "@" not in netloc:

.venv/Lib/site-packages/pip/_internal/models/link.py

@@ -27,7 +27,6 @@ from pip._internal.utils.misc import (
     split_auth_from_netloc,
     splitext,
 )
-from pip._internal.utils.models import KeyBasedCompareMixin
 from pip._internal.utils.urls import path_to_url, url_to_path
 
 if TYPE_CHECKING:
@@ -179,7 +178,8 @@ def _ensure_quoted_url(url: str) -> str:
     return urllib.parse.urlunparse(result._replace(path=path))
 
 
-class Link(KeyBasedCompareMixin):
+@functools.total_ordering
+class Link:
     """Represents a parsed link from a Package Index's simple URL"""
 
     __slots__ = [
@@ -254,8 +254,6 @@ class Link(KeyBasedCompareMixin):
         self.yanked_reason = yanked_reason
         self.metadata_file_data = metadata_file_data
 
-        super().__init__(key=url, defining_class=Link)
-
         self.cache_link_parsing = cache_link_parsing
         self.egg_fragment = self._egg_fragment()
 
@@ -375,6 +373,19 @@ class Link(KeyBasedCompareMixin):
     def __repr__(self) -> str:
         return f"<Link {self}>"
 
+    def __hash__(self) -> int:
+        return hash(self.url)
+
+    def __eq__(self, other: Any) -> bool:
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url == other.url
+
+    def __lt__(self, other: Any) -> bool:
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url < other.url
+
     @property
     def url(self) -> str:
         return self._url

.venv/Lib/site-packages/pip/_internal/models/scheme.py

@@ -5,10 +5,12 @@ For a general overview of available schemes and their context, see
 https://docs.python.org/3/install/index.html#alternate-installation.
 """
 
+from dataclasses import dataclass
 
 SCHEME_KEYS = ["platlib", "purelib", "headers", "scripts", "data"]
 
 
+@dataclass(frozen=True)
 class Scheme:
     """A Scheme holds paths which are used as the base directories for
     artifacts associated with a Python package.
@@ -16,16 +18,8 @@ class Scheme:
 
     __slots__ = SCHEME_KEYS
 
-    def __init__(
-        self,
-        platlib: str,
-        purelib: str,
-        headers: str,
-        scripts: str,
-        data: str,
-    ) -> None:
-        self.platlib = platlib
-        self.purelib = purelib
-        self.headers = headers
-        self.scripts = scripts
-        self.data = data
+    platlib: str
+    purelib: str
+    headers: str
+    scripts: str
+    data: str

.venv/Lib/site-packages/pip/_internal/models/search_scope.py

@@ -3,6 +3,7 @@ import logging
 import os
 import posixpath
 import urllib.parse
+from dataclasses import dataclass
 from typing import List
 
 from pip._vendor.packaging.utils import canonicalize_name
@@ -14,14 +15,18 @@ from pip._internal.utils.misc import normalize_path, redact_auth_from_url
 logger = logging.getLogger(__name__)
 
 
+@dataclass(frozen=True)
 class SearchScope:
-
     """
     Encapsulates the locations that pip is configured to search.
     """
 
     __slots__ = ["find_links", "index_urls", "no_index"]
 
+    find_links: List[str]
+    index_urls: List[str]
+    no_index: bool
+
     @classmethod
     def create(
         cls,
@@ -64,16 +69,6 @@ class SearchScope:
             no_index=no_index,
         )
 
-    def __init__(
-        self,
-        find_links: List[str],
-        index_urls: List[str],
-        no_index: bool,
-    ) -> None:
-        self.find_links = find_links
-        self.index_urls = index_urls
-        self.no_index = no_index
-
     def get_formatted_locations(self) -> str:
         lines = []
         redacted_index_urls = []

.venv/Lib/site-packages/pip/_internal/models/selection_prefs.py

@@ -3,6 +3,8 @@ from typing import Optional
 from pip._internal.models.format_control import FormatControl
 
 
+# TODO: This needs Python 3.10's improved slots support for dataclasses
+# to be converted into a dataclass.
 class SelectionPreferences:
     """
     Encapsulates the candidate selection preferences for downloading

.venv/Lib/site-packages/pip/_internal/models/target_python.py

@@ -8,7 +8,6 @@ from pip._internal.utils.misc import normalize_version_info
 
 
 class TargetPython:
-
     """
     Encapsulates the properties of a Python interpreter one is targeting
     for a package install, download, etc.

.venv/Lib/site-packages/pip/_internal/models/wheel.py

@@ -1,6 +1,7 @@
 """Represents a wheel file and provides access to the various parts of the
 name that have meaning.
 """
+
 import re
 from typing import Dict, Iterable, List