Little utility that I cooked up to convert numbers between binary, hex, and decimal. It also converts MAC address > to binary > to decimal.

net_ops.py

__author__ = 'muribe'
"""
    Little utility that I cooked up to convert numbers between binary, hex, and decimal.

    If a MAC address in the following format is entered:

        00-11-8a-2d-ff-ff

    It returns the following binary:

        0000 0000 0001 0001 1000 1010 0010 1101 1111 1111 1111 1111

    If that binary is put back in, it is converted to the following decimal:

        0 17 138 45 255 255
    
    To convert a decimal into either its hex or binary representation, just put that number in.
    To convert a hex into either its binary or decimal representation, just prefix it with 0x:
        ie 0xff.
    To convert a binary number into either its hex or decimal representation, just prefix it with 0b:
        ie 0b01001101 or 0b10
        
    Shout out to all of my network buds out there!
"""


def hex_to_dec(num):
    return int(num, 16)


def hex_to_bin(num):
    return str(bin(int(num, 16))[2:]).rjust(8, '0')


def bin_to_hex(num):
    return hex(int(num, 2))[2:].upper()


def bin_to_dec(num):
    return int(num, 2)


def dec_to_hex(num):
    return hex(int(num))[2:].upper()


def dec_to_bin(num):
    return str(bin(int(num))[2:]).rjust(8, '0')


def main():
    while True:
        num = raw_input("Enter a number: ")
        if num == '' or num == 'quit':
            break
        else:
            try:
                if '0x' in num:
                    print "Decimal:", hex_to_dec(num)
                    print " Binary:", hex_to_bin(num)
                elif '0b' in num:
                    print "    Decimal:", bin_to_dec(num)
                    print "Hexadecimal:", bin_to_hex(num)
                elif '-' in num:
                    bin_number = ''
                    address = ''
                    bits = num.split('-')
                    for bit in bits:
                        bin_number += hex_to_bin('0x'+bit)
                    for digit in range(len(bin_number)):
                        if digit > 0 and digit % 4 == 0:
                            address += ' '
                        address += bin_number[digit]
                    print address
                elif ' ' in num:
                    dec_number = list()
                    bits = num.split(' ')
                    for bit in range(0, len(bits), 2):
                        bit_number = bits[bit] + bits[bit+1]
                        dec_number.append(str(bin_to_dec('0b'+bit_number)))
                    print ' '.join(dec_number)
                else:
                    print "     Binary:", dec_to_bin(num)
                    print "Hexadecimal:", dec_to_hex(num)
            except Exception, e:
                print "Error:", e
                exit()


if __name__ == "__main__":
    main()