bpython

bpython is a lightweight Python interpreter that provides a fancy curses-based interface to the standard Python REPL. It enhances the interactive experience with features such as syntax highlighting, expected parameter lists, auto-indentation, and autocompletion. It also includes unique functionalities like 'rewind' (undoing the last line), code pastebin, and in-editor session editing. The library is actively maintained, with version 0.26 being the latest release, and new versions often focus on supporting the latest Python releases.