Issue #26736: Used HTTPS for external links in the documentation if possible.
diff --git a/Doc/library/urlparse.rst b/Doc/library/urlparse.rst
index dc96a31..e2c6061 100644
--- a/Doc/library/urlparse.rst
+++ b/Doc/library/urlparse.rst
@@ -258,7 +258,7 @@
 
    .. doctest::
 
-      >>> urljoin('http://www.cwi.nl/%7Eguido/Python.html',
+      >>> urljoin('https://www.cwi.nl/%7Eguido/Python.html',
       ...         '//www.python.org/%7Eguido')
       'http://www.python.org/%7Eguido'