python - Why won't my curses box draw?

Question

I am toying with curses and I can't get a box to draw on the screen. I created a border which works but I want to draw a box in the border

here is my code

import curses 

screen = curses.initscr()

try:
    screen.border(0)
    box1 = curses.newwin(20, 20, 5, 5)
    box1.box()
    screen.getch()

finally:
    curses.endwin()

any advice?

Answer 1

The suggested answer is more complicated than necessary. Rather than use newwin, if you use subwin, it shares memory with the original window, and will be repainted without additional work.

Here is the original program modified to do that (a one-line change):

import curses

screen = curses.initscr()

try:
    screen.border(0)
    box1 = screen.subwin(20, 20, 5, 5)
    box1.box()
    screen.getch()

finally:
    curses.endwin()