I wish to extract the bit fields from a Python float, call it x. First I cast the float to 8-bytes:
s = struct.pack('=d', x) i = struct.unpack('=q', s)[0] Then I extract the bit fields from the int, e.g. to grab the sign bit: (i & 0x8000000000000000) >> 63 Questions: 1) Are there any known implementations or platforms where Python floats are not C doubles? If so, what are they? 2) If the platform byte-order is reversed, do I need to take any special action? I don't think I do, because even though the float is reversed, so will be the bit mask. Is this correct? 3) Any other problems with the way I am doing this? Thanks in advance, Steven -- http://mail.python.org/mailman/listinfo/python-list