Explode a number into hex and binary representations

hexdump.py

#!/usr/bin/python
''' Formats a number into its hex and binary representations. Possibly useful
    for manipulating bit masks and writing assembly.

        >>> hd(0xfdff)
           65023
        0x f    d    f    f   
        0b 1111 1101 1111 1111
'''

def hd(n):
    print '   %d' % n
    h, b = [], []
    while n > 0:
        _n = 0xf & n
        h.append('{0:<4x}'.format(_n))
        b.append('{0:04b}'.format(_n))
        n = n >> 4
    h.reverse()
    b.reverse()

    print '0x ' + ' '.join(h)
    print '0b ' + ' '.join(b)