* lisp/progmodes/python.el (python-shell-completion-native-turn-on-maybe):
The relevant variable is `python-shell-completion-native-enable'.
:warning
(concat
"Your `python-shell-interpreter' doesn't seem to "
- "support readline, yet `python-shell-completion-native' "
+ "support readline, yet `python-shell-completion-native-enable' "
(format "was t and %S is not part of the "
(file-name-nondirectory python-shell-interpreter))
"`python-shell-completion-native-disabled-interpreters' "