tests - fix multipart

Author: commonism

tests/pathv20_test.py

@@ -185,7 +185,7 @@ def on_file(file):
         file.file_object.seek(0)
         files[file.field_name] = (file.file_name.decode(), file.file_object)
 
-    multipart.parse_form(request.headers, io.BytesIO(request.content), None, on_file)
+    python_multipart.parse_form(request.headers, io.BytesIO(request.content), None, on_file)
 
     ms = MultipartStream({}, files=files)