Hello world python curses

pycurses.py

import curses

SCREEN_WIDTH, SCREEN_HEIGHT = 100, 100

class curses_screen:
    def __enter__(self):
        """Initialize"""
        self.stdscr = curses.initscr()
        curses.cbreak()
        curses.noecho()
        self.stdscr.keypad(1)
        # Initialize max width, height
        SCREEN_HEIGHT, SCREEN_WIDTH = self.stdscr.getmaxyx()
        return self.stdscr
    def __exit__(self,a,b,c):
        """
        Makes sure the exit does not
        crashes the terminal
        """
        curses.nocbreak()
        self.stdscr.keypad(0)
        curses.echo()
        curses.endwin()