barcode.py

import matplotlib.pyplot
import numpy
import math

number_codes = ['0001101', '0011001', '0010011', '0111101', '0100011', '0110001', '0101111', '0111011', '0110111', '0001011']

def write_code(bcode, pos, number_value, separator=False):
    #tu codigo aca

def write_separator(bcode, pos):
    write_code(bcode, pos, '010', True)

def write_middle_separator(bcode, pos):
    write_code(bcode, pos, '10101', True)

def write_barcode(number_value):
    bcode = numpy.ones([30, 95, 3], dtype=float)

    codes = numpy.fromiter(number_value, dtype=int)
    check_sum = numpy.sum(codes[0::2])*3 + numpy.sum(codes[1::2])
    check_code = (10 - check_sum%10)%10
    codes = numpy.append(codes, [check_code])

    pos = 0
    write_separator(bcode, pos)
    pos = pos + 3
    for code in codes:
        separator = False
        if pos == 3 or pos == 85:
            separator = True
        write_code(bcode, pos, number_codes[code], separator)
        pos = pos + 7
        if pos == 45:
            write_middle_separator(bcode, pos)
            pos = pos + 5
    write_separator(bcode, pos)
    pos = pos + 3
    matplotlib.pyplot.imsave('barcode.png', bcode)

write_barcode('01010101010')