Feb 3, 2026 · Feb 2, 2026 · Feb 2, 2026 · Feb 2, 2026
diff --git a/Doc/library/os.path.rst b/Doc/library/os.path.rst

 ..function::commonprefix(list, /)

   Return the longestpath prefix (taken character-by-character) that is a
   prefix of allpaths in *list*.  If *list* is empty, return the empty string
   Return the longeststring prefix (taken character-by-character) that is a
   prefix of allstrings in *list*.  If *list* is empty, return the empty string
   (``''``).

   ..note::
   ..warning::

      This function may return invalid paths because it works a
      character at a time.  To obtain a valid path, see
 :func:`commonpath`.
      character at a time.
      If you need a **common path prefix**, then the algorithm
      implemented in this function is not secure. Use
 :func:`commonpath` for finding a common path prefix.

      ::
Original file line number	Diff line number	Diff line change
Expand Up		@@ -97,15 +97,17 @@ the :mod:`glob` module.)

		..function::commonprefix(list, /)

		Return the longestpath prefix (taken character-by-character) that is a
		prefix of allpaths in list. If list is empty, return the empty string
		Return the longeststring prefix (taken character-by-character) that is a
		prefix of allstrings in list. If list is empty, return the empty string
		(``''``).

		..note::
		..warning::

		This function may return invalid paths because it works a
		character at a time. To obtain a valid path, see
		:func:`commonpath`.
		character at a time.
		If you need a common path prefix, then the algorithm
		implemented in this function is not secure. Use
		:func:`commonpath` for finding a common path prefix.
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		::

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