Skip to content

Instantly share code, notes, and snippets.

What would you like to do?
Detection Python Environment, Especially distinguish Spyder, Jupyter notebook, Qtconsole
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
Created on Tue May 8 20:40:30 2018
@author: yanglei
# Detection Python Environment, Especially distinguish Spyder, Jupyter notebook, Qtconsole
As far as I know, Here has 3 kinds of ipython that used `ipykernel`
1. `ipython qtconsole` ("qtipython" for short)
2. IPython in spyder ("spyder" for short)
3. IPython in jupyter notebook ("jn" for short)
use `'spyder' in sys.modules` can distinguish spyder
but for qtipython and jn are hard to distinguish cause
they have same `sys.modules` and same IPython config:`get_ipython().config`
I find a different between qtipython and jn:
first run `os.getpid()` in IPython shell get the pid number
then run `ps -ef|grep [pid number]`
my qtipython pid is 8699
yanglei 8699 8693 4 20:31 ? 00:00:01 /home/yanglei/miniconda2/envs/py3/bin/python -m ipykernel_launcher -f /run/user/1000/jupyter/kernel-8693.json
my jn pid is 8832
yanglei 8832 9788 13 20:32 ? 00:00:01 /home/yanglei/miniconda2/bin/python -m ipykernel_launcher -f /run/user/1000/jupyter/kernel-ccb962ec-3cd3-4008-a4b7-805a79576b1b.json
the different of qtipython and jn is the ipython's json name, jn's json name are longer than qtipython's
so, we can auto detection all Python Environment by following code:
import sys,os
def jupyterNotebookOrQtConsole():
env = 'Unknow'
cmd = 'ps -ef'
with os.popen(cmd) as stream:
if not py2:
stream = stream._stream
s =
pid = os.getpid()
ls = list(filter(lambda l:'jupyter' in l and str(pid) in l.split(' '), s.split('\n')))
if len(ls) == 1:
l = ls[0]
import re
pa = re.compile(r'kernel-([-a-z0-9]*)\.json')
rs = pa.findall(l)
if len(rs):
r = rs[0]
if len(r)<12:
env = 'qtipython'
else :
env = 'jn'
return env
return env
pyv = sys.version_info.major
py3 = (pyv == 3)
py2 = (pyv == 2)
class pyi():
python info
plt : Bool
mean plt avaliable
env :
belong [cmd, cmdipython, qtipython, spyder, jn]
pid = os.getpid()
gui = 'ipykernel' in sys.modules
cmdipython = 'IPython' in sys.modules and not gui
ipython = cmdipython or gui
spyder = 'spyder' in sys.modules
if gui:
env = 'spyder' if spyder else jupyterNotebookOrQtConsole()
env = 'cmdipython' if ipython else 'cmd'
cmd = not ipython
qtipython = env == 'qtipython'
jn = env == 'jn'
plt = gui or 'DISPLAY' in os.environ
print('Python Envronment is %s'%pyi.env)
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.