I do coding in virtualenv and at present I access my virtualenv in VTE using `virutalenvwrapper` with the command `workon ENV`. Instead of this I want to directly load the virtualenv bash in VTE everytime I open geany. I know how to get the virtualenv's python but its the bash I am after. I tried changing `Edit > Preference > Terminal > Shell` to `workon ENV` from `/bin/bash` which doesn't work. I also tried to source directly `source ENV/bin/activate` which also doesn't work. How do we enablel virtualenv bash in VTE?