update

.CondaPkg/env/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