adrin adrin - 4 months ago 38
Linux Question

emacs shell interprets ipython characters wrongly

I'm using

gnome-terminal
,
emacs -nw
,
eshell
inside
emacs
, and
ipython
.

For some reason the emacs shell is interpreting characters wrongly.

Here's what I see (plese note the last 3 lines):

$ ipython
Python 3.5.2 (default, Jun 28 2016, 08:46:01)
Type "copyright", "credits" or "license" for more information.

IPython 5.0.0 -- 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.

^[[?12l^[[?25hprint("hi")
^[[J^[[?7h^[[?12l^[[?25h^[[?2004lhi

^[[?12l^[[?25h


I believe this must be some encoding problem, but I'm not sure how to diagnose and fix it.

Here's my
env
output if it helps:

$ env
XDG_VTNR=2
XDG_SESSION_ID=c3
TERM=xterm-256color
SHELL=/bin/bash
XDG_MENU_PREFIX=gnome-
VTE_VERSION=4402
GJS_DEBUG_OUTPUT=stderr
WINDOWID=29360134
GJS_DEBUG_TOPICS=JS ERROR;JS LOG
USER=adrin
SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
SESSION_MANAGER=local/mydarlingarch:@/tmp/.ICE-unix/498,unix/mydarlingarch:/tmp/.ICE-unix/498
USERNAME=adrin
MOZ_PLUGIN_PATH=/usr/lib/mozilla/plugins
PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl
MAIL=/var/spool/mail/adrin
DESKTOP_SESSION=gnome
QT_QPA_PLATFORMTHEME=qgnomeplatform
XDG_SESSION_TYPE=x11
PWD=/home/adrin
LANG=en_US.UTF-8
GDM_LANG=en_US.UTF-8
GDMSESSION=gnome
XDG_SEAT=seat0
HOME=/home/adrin
SHLVL=1
GNOME_DESKTOP_SESSION_ID=this-is-deprecated
XDG_SESSION_DESKTOP=gnome
LOGNAME=adrin
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
WINDOWPATH=2
XDG_RUNTIME_DIR=/run/user/1000
DISPLAY=:0
XDG_CURRENT_DESKTOP=GNOME
COLORTERM=truecolor
XAUTHORITY=/run/user/1000/gdm/Xauthority
_=/usr/bin/env

Answer

Thanks to @brian-malehorn, the problem was indeed the control characters sent by ipython.

This could be checked by trying to echo a colored text using echo -e '\033[0;31mhello\033[1;0m', which in my case printed a colored text. If the problem was the colored text, it could be fixed by:

ipython --colors=NoColor

My problem however, was not the above, therefore it must have been control characters sent by ipython to the shell. This can be disabled using:

ipython --simple-prompt
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