This code will drow a N*M board on Screen Python

board.py

# this program Draws a board in screen
from operator import index

def ho_line(boardsize_ho, boardsize_vo):
    print " --- " * boardsize_ho * (boardsize_vo +1)
def ve_lone(boardsize_ho, boardsize_vo):
    print '|    ' * (boardsize_ho + 1) * boardsize_vo
    
def main():
    boardsize_ho = int(raw_input('please enter the board horzintal size:  '))
    boardsize_ve = int(raw_input('please enter the board vertical size:  '))
    for index in range(boardsize_ho):
        ho_line(boardsize_ho, boardsize_ve)
        ve_lone(boardsize_ho, boardsize_ve)
    ho_line(boardsize_ho,  boardsize_ve)
 
main()