myem.sh

#!/bin/bash
## Is emacs-jedi already running?
ps -ef | grep jedi-port.lo[g] 2>&1 >/dev/null

if [[ $? -ne 0 ]]
then
	# Replace the following 3 lines with your virtualenv
	cd ~/Documents/emacs-jedi/env/
	source bin/activate
	nohup python ~/Documents/emacs-jedi/jediepcserver.py --port-file ~/Documents/emacs-jedi/jedi-port.log &
fi

## Finally start emacs with the given arguments ...

emacs "$@"