Print Multiple Flow Direction weights to the CLI when given a packed weight

printflowdirection.py

import sys

def doit():
    packed_flow_dir = int(sys.argv[1])

    weights = [(packed_flow_dir >> 4*i) & 0xF for i in range(8)]
    weights = [str(w).rjust(2, ' ') for w in weights]

    print(weights)

    print('%s | %s | %s' % (weights[3], weights[2], weights[1]))
    print('---+----+---')
    print('%s |    | %s' % (weights[4], weights[0]))
    print('---+----+---')
    print('%s | %s | %s' % (weights[5], weights[6], weights[7]))


if __name__ == '__main__':
    doit()