From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Joost Kremers Newsgroups: gmane.emacs.help Subject: Multiple prompts when starting inferior Python Date: 6 May 2014 16:17:55 GMT Message-ID: NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1399413683 23183 80.91.229.3 (6 May 2014 22:01:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 6 May 2014 22:01:23 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed May 07 00:01:18 2014 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1WhnPY-00015O-0W for geh-help-gnu-emacs@m.gmane.org; Wed, 07 May 2014 00:00:28 +0200 Original-Received: from localhost ([::1]:36312 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Whi6M-0000d1-6b for geh-help-gnu-emacs@m.gmane.org; Tue, 06 May 2014 12:20:18 -0400 Original-Path: usenet.stanford.edu!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 67 Original-X-Trace: individual.net xgddtrOwkY8xVHBorH+DjApqHNRIAbT6HqpIVdCNb4STYFHj6/ Cancel-Lock: sha1:Xp24DdgxoKc1DfIQkDdQ7J/qdkE= User-Agent: slrn/pre1.0.0-18 (Linux) Original-Xref: usenet.stanford.edu gnu.emacs.help:205299 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:97563 Archived-At: Hi, Whenever I start an interactive Python session in Emacs, I get four empty prompts instead of one. That is, when I do `M-x run-python' (or start from a Python file with `C-c C-z'), the *Python* buffer looks like this: ,---- | Python 2.7.3 (default, Feb 27 2014, 19:58:35) | Type "copyright", "credits" or "license" for more information. | | IPython 0.12.1 -- An enhanced Interactive Python. | ? -> Introduction and overview of IPython's features. | %quickref -> Quick reference. | help -> Python's own help system. | object? -> Details about 'object', use 'object??' for extra details. | | In [1]: | In [2]: | In [3]: | In [4]: | `---- I use elpy and IPython, but that doesn't make a difference. This is what I get when running an interactive Python shell with `emacs -Q': ,---- | Python 2.7.3 (default, Feb 27 2014, 19:58:35) | [GCC 4.6.3] on linux2 | Type "help", "copyright", "credits" or "license" for more information. | >>> >>> >>> >>> `---- Note the four `>>>'. This is something that's been happening a while, and it's never really bothered me. However, the other day someone on Reddit asked the same question,[1] which prompted me to do some digging. I ran `run-python' though the debugger and it seems that those prompts are caused by the function `python-shell-send-setup-code', which sends the contents of the variables listed in the variable `python-shell-setup-codes' to the inferior python process when it's started. The default value of this option is: ,---- | (python-shell-completion-setup-code python-ffap-setup-code python-eldoc-setup-code) `---- Each of these variables contains some code which, when sent to the inferior python process, results in a new prompt being displayed, even though the actual command is not shown. Is this something that should be considered a bug? Can it be avoided somehow or should I simply live with it? (Which isn't very difficult, it doesn't seem to affect anything.) TIA [1] http://www.reddit.com/r/emacs/comments/24fy1q/help_get_rid_of_multiple_inputs_when_running_a/ -- Joost Kremers joostkremers@fastmail.fm Selbst in die Unterwelt dringt durch Spalten Licht EN:SiS(9)