update

.CondaPkg/env/Lib/site-packages/pip/_internal/models/candidate.py

@@ -1,34 +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 "{!r} candidate (version {} at {})".format(
-            self.name,
-            self.version,
-            self.link,
-        )
+        return f"{self.name!r} candidate (version {self.version} at {self.link})"