fixed as suggestions

Author: dynamicy

Lib/pathlib/__init__.py

@@ -1386,22 +1386,18 @@ def _copy_from_file(self, source, preserve_metadata=False):
         _copy_from_file_fallback = _copy_from_file
         def _copy_from_file(self, source, preserve_metadata=False):
             try:
-                source_fspath = os.fspath(source)
+                source_path = os.fspath(source)
             except TypeError:
-                pass
-            else:
-                try:
-                    copyfile2(source_fspath, str(self))
-                except OSError as exc:
-                    winerror = getattr(exc, 'winerror', None)
-                    if (_winapi is not None and
-                        winerror in (_winapi.ERROR_PRIVILEGE_NOT_HELD,
-                                     _winapi.ERROR_ACCESS_DENIED)):
-                        self._copy_from_file_fallback(source, preserve_metadata)
-                        return
-                    raise
+                self._copy_from_file_fallback(source, preserve_metadata)
                 return
-            self._copy_from_file_fallback(source, preserve_metadata)
+            try:
+                copyfile2(source_path, str(self))
+            except OSError as exc:
+                if hasattr(exc, "winerror") and exc.winerror in (5, 1314):
+                    # ERROR_ACCESS_DENIED (5) or ERROR_PRIVILEGE_NOT_HELD (1314)
+                    self._copy_from_file_fallback(source, preserve_metadata)
+                    return
+                raise
 
     if os.name == 'nt':
         # If a directory-symlink is copied *before* its target, then