Gracefully handle Windows registry access errors during mimetype detection (pypa#13183)

Author: JoaStuart

news/12769.bugfix.rst

@@ -0,0 +1 @@
+Gracefully handle Windows registry access errors while guessing the MIME type of a file.

src/pip/_internal/operations/prepare.py

@@ -87,7 +87,12 @@ class File:
 
     def __post_init__(self) -> None:
         if self.content_type is None:
-            self.content_type = mimetypes.guess_type(self.path)[0]
+            # Try to guess the file's MIME type. If the system MIME tables
+            # can't be loaded, give up.
+            try:
+                self.content_type = mimetypes.guess_type(self.path)[0]
+            except OSError:
+                pass
 
 
 def get_http_url(