Generate Bingo cards using numpy arrays.

bingo_card_generator.py

import numpy as np
import random

CARD_SIZE = 5

# Chooses from twice as many numbers as a card can have.
# For example, a card with size 5 can have numbers between 1 and 25*2 -> 50, inclusive (hence the '+ 1')
MIN = 1
MAX = CARD_SIZE**2 * 2 + 1

card = np.array( random.sample(range(MIN, MAX + 1), CARD_SIZE**2) ).reshape(CARD_SIZE, CARD_SIZE)

# Pretty print the card, using either (1) or (2)
# Choose one!

# (1) Print numpy's default string representation, with '[' and ']' removed
print np.array_str(card).replace('[', ' ').replace(']', '')

# (2) Iterate over each element in array
for row in card:
    for element in row:
        print element, '\t',
    print
'''
CARD_SIZE = 5
Highlight both ouputs to see spacing differences

Note the spaces at the beginning of each line
Sample output (1):
   2 33 41  6 16
  30 32 43 35 46
  29 14 23 31 48
  51 39 21 10 17
  26  3  1 24 49

Note the tabs at the end of each line
Sample output (2):
2 	33 	41 	6 	16 	
30 	32 	43 	35 	46 	
29 	14 	23 	31 	48 	
51 	39 	21 	10 	17 	
26 	3 	1 	24 	49 	
'''