GNU bug report logs - #25067
Emacs pretest 25.1.90 - ipython completion

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Message #37 received at 25067 <at> debbugs.gnu.org (full text, mbox):

From: npostavs <at> users.sourceforge.net
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: eflanigan00 <at> hotmail.com, 25067 <at> debbugs.gnu.org
Subject: Re: bug#25067: #25067 Emacs pretest 25.1.91 - ipython completion
Date: Sat, 04 Feb 2017 09:39:46 -0500

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: npostavs <at> users.sourceforge.net
>> Date: Fri, 03 Feb 2017 19:03:40 -0500
>> Cc: "25067 <at> debbugs.gnu.org" <25067 <at> debbugs.gnu.org>
>> 
>> The behaviour from 25.1 can be restored by doing
>> 
>>     (add-to-list 'python-shell-completion-native-disabled-interpreters
>>                  "ipython")
>> 
>> So it looks like the problem is the fix for #24401 which enables native
>> completion work for python 3.5, also enables it for ipython, but native
>> completion doesn't actually work for ipython.
>
> Is there any safe way to fix this for Emacs 25.2?

I think the patch below is safe.  Although I can't say that I understand
what "native completion" actually means.

--- i/lisp/progmodes/python.el
+++ w/lisp/progmodes/python.el
@@ -3255,8 +3255,10 @@ python-shell-completion-string-code
   "Completion string code must work for (i)pdb.")
 
 (defcustom python-shell-completion-native-disabled-interpreters
-  ;; PyPy's readline cannot handle some escape sequences yet.
-  (list "pypy")
+  ;; 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")
   "List of disabled interpreters.
 When a match is found, native completion is disabled."
   :version "25.1"

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