import curses

class TermManager():
    
    def __init__(self):
        self.screen = curses.initscr()
        # convert escapes sequences to curses abstraction
        self.screen.keypad(True)
        # stop printing typed keys to the terminal
        curses.noecho()
        # send keys through without having to press <enter>
        curses.cbreak()
        # make cursor invisible
        curses.curs_set(False)

    def __enter__(self):
        return self.screen

    def __exit__(self, type, value, traceback):
        # restore the terminal to its original state
        self.screen.keypad(False)
        curses.echo()
        curses.nocbreak()
        curses.curs_set(True)
        curses.endwin()