Fix SearchScope dataclass by using slots=True parameter instead of __slots__

The combination of @DataClass(frozen=True), __slots__, and default values
causes a ValueError because default values create class variables that
conflict with __slots__. Using slots=True parameter in the dataclass
decorator handles this correctly in Python 3.10+.

Author: matteius

pipenv/patched/pip/_internal/models/search_scope.py

@@ -3,7 +3,7 @@
 import os
 import posixpath
 import urllib.parse
-from dataclasses import dataclass, field
+from dataclasses import dataclass
 
 from pipenv.patched.pip._vendor.packaging.utils import canonicalize_name
 
@@ -14,25 +14,17 @@
 logger = logging.getLogger(__name__)
 
 
-@dataclass(frozen=True)
+@dataclass(frozen=True, slots=True)
 class SearchScope:
     """
     Encapsulates the locations that pip is configured to search.
     """
 
-    __slots__ = [
-        "find_links",
-        "index_urls",
-        "no_index",
-        "index_lookup",
-        "index_restricted",
-    ]
-
     find_links: list[str]
     index_urls: list[str]
     no_index: bool
-    index_lookup: dict[str, list[str]] | None = field(default=None)
-    index_restricted: bool = field(default=False)
+    index_lookup: dict[str, list[str]] | None = None
+    index_restricted: bool = False
 
     @classmethod
     def create(

tasks/vendoring/patches/patched/pip_index_safety.patch

@@ -39,34 +39,23 @@ diff --git a/pipenv/patched/pip/_internal/models/search_scope.py b/pipenv/patche
 index 136163ca0..a41193a6e 100644
 --- a/pipenv/patched/pip/_internal/models/search_scope.py
 +++ b/pipenv/patched/pip/_internal/models/search_scope.py
-@@ -1,6 +1,6 @@
- import itertools
- import logging
- import os
- import posixpath
- import urllib.parse
--from dataclasses import dataclass
-+from dataclasses import dataclass, field
+@@ -17,14 +17,13 @@ logger = logging.getLogger(__name__)
 
- from pip._vendor.packaging.utils import canonicalize_name
-@@ -20,11 +20,19 @@ class SearchScope:
+
+-@dataclass(frozen=True)
++@dataclass(frozen=True, slots=True)
+ class SearchScope:
+     """
      Encapsulates the locations that pip is configured to search.
      """
 
 -    __slots__ = ["find_links", "index_urls", "no_index"]
-+    __slots__ = [
-+        "find_links",
-+        "index_urls",
-+        "no_index",
-+        "index_lookup",
-+        "index_restricted",
-+    ]
-
+-
      find_links: list[str]
      index_urls: list[str]
      no_index: bool
-+    index_lookup: dict[str, list[str]] | None = field(default=None)
-+    index_restricted: bool = field(default=False)
++    index_lookup: dict[str, list[str]] | None = None
++    index_restricted: bool = False
 
      @classmethod
      def create(