Reading file bit by bit

[Ulrich Eckhardt]

Alfred Bovin wrote:
> I'm working on something where I need to read a (binary) file bit by bit
> and do something depending on whether the bit is 0 or 1.

Well, smallest unit you can read is an octet/byte. You then check the
individual digits of the byte using binary masks.


   f = open(...)
   data = f.read()
   for byte in data:
       for i in range(8):
           bit = 2**i & byte
           ...

Uli

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