Command config, quitting, binary, Timer

[bearophileHUGS at lycos.com]

Bearophile>This can be fixed with a different dictionary that doesn't
contain the leading 0s,<

No other dict is necessary:

! _nibbles = {"0":"0000", "1":"0001", "2":"0010", "3":"0011",
!             "4":"0100", "5":"0101", "6":"0110", "7":"0111",
!             "8":"1000", "9":"1001", "A":"1010", "B":"1011",
!             "C":"1100", "D":"1101", "E":"1110", "F":"1111",
!             "-":"-"}
!
! def toBase2(number):
!     """toBase2(number): given an int/long, converts it
!     to a string containing the number in base 2."""
!     # From a suggestion by Dennis Lee Bieber.
!     if number == 0:
!         return "0"
!     result = [_nibbles[nibble] for nibble in "%X"%number]
!     result[number<0] = result[number<0].lstrip("0")
!     return "".join(result)
! 
! for i in xrange(-20, 21):
!     print toBase2(i)

Bye,
Bearophile