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Base 2 Conversion (See related posts)

Converting from base 2 to int is easy
   1  
   2  >>> int('1010', 2)
   3  10

The opposite is a bit involved.
   1  
   2  >>> number = 1000
   3  >>> hex2bin = {"0":"0000", "1":"0001", "2":"0010", "3":"0011",
   4              "4":"0100", "5":"0101", "6":"0110", "7":"0111",
   5              "8":"1000", "9":"1001", "A":"1010", "B":"1011",
   6              "C":"1100", "D":"1101", "E":"1110", "F":"1111"}
   7  >>> "".join([hex2bin[h] for h in '%X'%number]).lstrip('0')
   8  '1111101000'

See the def of toBase2(number) here
to python conversion base2 by korakot on Fri Sep 09 10:51:27 -0400 2005

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