[Tutor] Integer to binary

[Dick Moores]

At 07:27 AM 7/10/2007, Mihai Iacob wrote:
>Hello,
>
>Is there a function that converts from integer to
>binary (or a module that handles this)?
>
>The only thing close to it that i found in the manual
>is the binascii module but i can't get it to work.

Here's one:

def base10ToBaseN(n, base=2):
     """converts base 10 integer n to base 2-9 integer as string"""
     if n == 0: return '0'
     sign = '-' if n<0 else ''

     num = abs(n)
     seq = []
     while (num != 0):
         (num, bit) = divmod(num, base)
         seq.append(str(bit))
     seq.append(sign)
     return ''.join(reversed(seq))

Dick Moores