File python-3.9.10-add-site-packages-path.patch of Package mingw64-python3

--- a/Python-3.9.10/Lib/site.py	2023-02-08 14:08:07.619513072 +0100
+++ b/Python-3.9.10/Lib/site.py	2023-02-08 14:24:38.864390404 +0100
@@ -338,18 +338,11 @@
         if sys.platlibdir != "lib":
             libdirs.append("lib")
 
-        if os.sep == '/':
-            for libdir in libdirs:
-                path = os.path.join(prefix, libdir,
-                                    "python%d.%d" % sys.version_info[:2],
-                                    "site-packages")
-                sitepackages.append(path)
-        else:
-            sitepackages.append(prefix)
-
-            for libdir in libdirs:
-                path = os.path.join(prefix, libdir, "site-packages")
-                sitepackages.append(path)
+        for libdir in libdirs:
+            path = os.path.join(prefix, libdir,
+                                "python%d.%d" % sys.version_info[:2],
+                                "site-packages")
+            sitepackages.append(path)
     return sitepackages
 
 def addsitepackages(known_paths, prefixes=None):