Arrow keys no longer work in Python shell after upgrading Mac OS to Sierra

Question

I\'m using zsh, iTerm2 (3.0.9), and pyenv (1.0.2) with pyenv global set to 3.5.2.

In the Python shell, the up and down arrow keys used to work, to access the previou

Answer 1

This can happen with upgrading XCode or XCode tools (which often occurs with an OS upgrade) when using brew installed python.

In this case, you just need to reinstall:

brew reinstall python

If you need python 2, remember brew defaults to python3 now, so you need:

brew reinstall python2