https://github.com/python/cpython/commit/3dd7a3c65ad4ac330ad44a519efa017484530e1a
commit: 3dd7a3c65ad4ac330ad44a519efa017484530e1a
branch: main
author: Adorilson Bezerra <[email protected]>
committer: hugovk <[email protected]>
date: 2026-02-09T00:08:18+02:00
summary:
gh-106318: Add example for str.isalnum() (#137550)
files:
M Doc/library/stdtypes.rst
diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index 0f20163e69509c..4fc6f3b9652165 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -2180,7 +2180,18 @@ expression support in the :mod:`re` module).
Return ``True`` if all characters in the string are alphanumeric and there
is at
least one character, ``False`` otherwise. A character ``c`` is
alphanumeric if one
of the following returns ``True``: ``c.isalpha()``, ``c.isdecimal()``,
- ``c.isdigit()``, or ``c.isnumeric()``.
+ ``c.isdigit()``, or ``c.isnumeric()``. For example::
+
+ .. doctest::
+
+ >>> 'abc123'.isalnum()
+ True
+ >>> 'abc123!@#'.isalnum()
+ False
+ >>> ''.isalnum()
+ False
+ >>> ' '.isalnum()
+ False
.. method:: str.isalpha()
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