xxxxxxxxxx
$ ps uaxw |grep python |grep -v grep
abarnert 1028 0.0 0.3 2529488 55252 s000 S+ 9:46PM 0:02.80 /Library/Frameworks/Python.framework/Versions/3.4/Resources/Python.app/Contents/MacOS/Python /Library/Frameworks/Python.framework/Versions/3.4/bin/ipython3
abarnert 9639 0.0 0.1 2512928 19228 s002 T 3:06PM 0:00.40 /System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python /usr/local/bin/ipython2
$
$ ps uaxw |grep python |grep -c -v grep
2