Outputs numbers from 0 to 150 in BCD

bcd.py

#!/usr/bin/env python

bcd_digits = {
  "0": "0000",
  "1": "0001",
  "2": "0010",
  "3": "0011",
  "4": "0100",
  "5": "0101",
  "6": "0110",
  "7": "0111",
  "8": "1000",
  "9": "1001"
}
 
with open("bcds.txt", "w") as out:
    for number in range(151):
        bcd_number = []
        for digit in str(number):
            bcd_number.append(bcd_digits[digit])
        out.write("{0} - {1}\n".format(str(number).rjust(3, "0"),
                                        "".join(bcd_number).rjust(12, "0")))