install ipython for current python version 2.x
Use ipython2
to start a ipython2 shell, if you need to install for python2 use pip2 install ipython
. pip
obviously points to python3 on your system so specifying pip2
will install ipython for python2.
Whatever the shebang points to will mean typing just ipython
will start a shell for that version of python so if you had #!/usr/bin/python3.4
then ipython
will start an ipython3 shell and vice-versa. Unless you have Ipython actually installed for python2 then changing the shebang won't do anything but error.