https://github.com/python/cpython/commit/bc9bb7386597e22693662f489a7474998788e228
commit: bc9bb7386597e22693662f489a7474998788e228
branch: main
author: Kanishk Pachauri <[email protected]>
committer: orsenthil <[email protected]>
date: 2026-07-09T05:11:36Z
summary:

gh-130578: clarify urllib.parse.quote parameter defaults behavior (#130598)

Co-authored-by: Serhiy Storchaka <[email protected]>

files:
M Doc/library/urllib.parse.rst

diff --git a/Doc/library/urllib.parse.rst b/Doc/library/urllib.parse.rst
index 3ce20311c42c84..26e159306c8107 100644
--- a/Doc/library/urllib.parse.rst
+++ b/Doc/library/urllib.parse.rst
@@ -649,8 +649,9 @@ task isn't already covered by the URL parsing functions 
above.
 
    The optional *encoding* and *errors* parameters specify how to deal with
    non-ASCII characters, as accepted by the :meth:`str.encode` method.
-   *encoding* defaults to ``'utf-8'``.
-   *errors* defaults to ``'strict'``, meaning unsupported characters raise a
+   Although these parameters default to ``None`` in the function signature,
+   when processing :class:`str` inputs, *encoding* effectively defaults to 
``'utf-8'``
+   and *errors* to ``'strict'``, meaning unsupported characters raise a
    :class:`UnicodeEncodeError`.
    *encoding* and *errors* must not be supplied if *string* is a
    :class:`bytes`, or a :class:`TypeError` is raised.

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