Modern Python Standard Library Cookbook

How to do it...

For this recipe, perform the following steps:

1. The Python standard library provides a curses.textpad module that has the foundation of a multiline text editor with emacs, such as key bindings. We just need to extend it a little to add some required behaviors and fixes:

import curses
from curses.textpad import Textbox, rectangle


class TextInput(object):
    @classmethod
    def show(cls, message, content=None):
        return curses.wrapper(cls(message, content)._show)

    def __init__(self, message, content):
        self._message = message
        self._content = content

    def _show(self, stdscr):
        # Set a reasonable size for our input box.
        lines, cols = curses.LINES - 10, curses.COLS - 40

        y_begin, x_begin = (curses.LINES - lines) // 2,  (curses.COLS - cols) ...