# A Interactive Input Editing and History Substitution

Some versions of the Python interpreter support editing of the current input line and history substitution, similar to facilities found in the Korn shell and the GNU Bash shell. This is implemented using the GNU Readline library, which supports Emacs-style and vi-style editing. This library has its own documentation which I won't duplicate here; however, the basics are easily explained.

- A.0.1 Line Editing
- A.0.2 History Substitution
- A.0.3 Key Bindings
- A.0.4 Commentary