Extracting a short using struct - won't print.
Graham Nicholls
graham at rockcons.co.uk
Thu Aug 7 12:13:35 EDT 2003
Richard Brodie wrote:
>
> "Graham Nicholls" <graham at rockcons.co.uk> wrote in message
> news:3f32779d$0$10780$afc38c87 at auth.uk.news.easynet.net...
>
>> >> seg_stru=">BHH"
>> >> seg_data=self.fhand.read(struct.calcsize(seg_stru))
>> >> data=struct.unpack(seg_stru,seg_data)
>> >> x=seg_data[1]
>> >> y=seg_data[2]
>> >
>> > Why are you unpacking the struct if you aren't going to use the
>> > unpacked data?
>>
>> Err, I'm trying to extract two shorts - the x and y size in pixels of an
>> image, which I'll use to scale it to fit another pair of parameters.
>> What makes you think I'm not using the data? Am I not - I thought I was!
>
> You aren't using the returned value from struct.unpack() anywhere.
> You need something like x, y = struct.unpack(seg_stru,seg_data)
I told you it'd be something stupid!
I mean
x=data[1]
y=data[2]
don't I!
Thanks!!!!
Graham
--
Graham Nicholls
Rock Computer Consultancy
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