问题
I am new to emacs. I installed emacs24 which has a built-in python mode(python.el). I cannot find this file and don't know how to configure it to use python3 shell (it's using python2.7 as default). Thannks
回答1:
M-x customize-variable RET python-shell-interpreter RET
Set it to python3. Afterwards M-x run-python RET should open a Python3 shell.
If not working yet, check $PATH, make sure the directory holding python3 executable appears.
来源：https://stackoverflow.com/questions/23852308/how-to-configure-python-el-for-emacs-to-use-python3-shell