Reading binary data
Terry Reedy
tjreedy at udel.edu
Wed Sep 10 20:46:50 EDT 2008
Aaron Scott wrote:
> Taking everything into consideration, my code is now:
>
> import struct
> file = open("test.gde", "rb")
> signature = file.read(3)
> version, attr_count = struct.unpack('II', file.read(8))
> print signature, version, attr_count
> for idx in xrange(attr_count):
> attr_id, attr_val_len = struct.unpack('II', file.read(8))
> attr_val = file.read(attr_val_len)
> print attr_id, attr_val_len, attr_val
> file.close()
>
> which gives a result of:
>
> GDE 2 2
> 1 4 é
> 2 4 ê Å
>
> Essentially, the same results I was originally getting :
It appears that your 4-byte attribute values are not what you were
expecting. Do you have separate info on the supposed contents? In any
case, I would print repr(attr_val) and even for c in attr_val:
print(ord(c)).
tjr
More information about the Python-list
mailing list