Sorry, I'm not sure I understand what you are asking. Does the following not give a graphical interface?
From the command line (terminal):
You can try using your file manager to navigate to the pycharm-1.01/bin directory and then double click on pycharm.sh. I only have Thunar installed as a file manager and it will no longer execute shell scripts by double clicking. I don't know about Nautilus, if that is the default Ubuntu file manager.
Hope this helps!