Summary

https://docs.python.org/3/library/readline.html
As per this issue (#118840), the python REPL after version 3.13 no longer supports readline. Readline can still be used if PYTHON_BASIC_REPL is set. The documentation should be changed to reflect this, it is rather difficult to understand why the example pythonrc.py on the page doesn't work otherwise.

Linked PRs

• gh-137113 docs: note readline no longer supported in REPL after 3.13 #137142
• [3.14] gh-137113 docs: note readline no longer supported in REPL after 3.13 (GH-137142) #143791
• [3.13] gh-137113 docs: note readline no longer supported in REPL after 3.13 (GH-137142) #143792