bug#28580: python.el: native completion setup failed

[Noam Postavsky]

tags 28580 + patch
quit

Noam Postavsky <npostavs@users.sourceforge.net> writes:

> I've now installed pyreadline on my Windows box. Unfortunately, as far
> as I can tell there is no way to make native completion work on
> Windows, readline simply won't work unless python is run from a
> console. So we should just disable it under windows to stop the
> annoying warning.

I.e.:

>From 1cb9846462844dfbbc34a02bdbdc66de9ce85c20 Mon Sep 17 00:00:00 2001
From: Noam Postavsky <npostavs@gmail.com>
Date: Thu, 12 Oct 2017 23:25:13 -0400
Subject: [PATCH] Disable python native completion on w32 (Bug#28580)

* lisp/progmodes/python.el
(python-shell-completion-native-disabled-interpreters): For windows-nt
systems, put an empty string to match interpreters.
---
 lisp/progmodes/python.el | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index f79d9a47d3..895117b9ee 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -3304,8 +3304,9 @@ python-shell-completion-string-code
 (defcustom python-shell-completion-native-disabled-interpreters
   ;; PyPy's readline cannot handle some escape sequences yet.  Native
   ;; completion was found to be non-functional for IPython (see
-  ;; Bug#25067).
-  (list "pypy" "ipython")
+  ;; Bug#25067).  Native completion doesn't work on w32 (Bug#28580).
+  (if (eq system-type 'windows-nt) '("")
+    '("pypy" "ipython"))
   "List of disabled interpreters.
 When a match is found, native completion is disabled."
   :version "25.1"
-- 
2.11.0