On Wed, Apr 24, 2013 at 2:23 PM, sparkle Plenty
<sparkle.plenty12481...@gmail.com> wrote:
> I will have an unknown number of instances, each of which consists of 3
> numeric values. I tried packing each instance using struct.pack, then
> converting to a tuple, then concatenating. This ran, but introduced
> errors: in some instances, high order truncation of a leading zero in the
> first of the 3 values. This throws off the position of all data that
> follows. Error messages and error code are dependent on which technique is
> being tried. The most recent ones are:
> TypeError: can't concat bytes to str
> TypeError: Can't convert 'tuple' object to str implicitly
If it's simply a matter of packing a number to a fixed number of
bytes, why not use the to_bytes method of a 3.x int?
>>> b''.join(x.to_bytes(4, 'big') for x in [0x8badf00d,
0xd15ea5ed, 0xdeadd00d])
b'\x8b\xad\xf0\r\xd1^\xa5\xed\xde\xad\xd0\r'
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