Rustom Mody <rustompm...@gmail.com> wrote:
>On Tuesday, August 26, 2014 6:58:42 AM UTC+5:30, Tim Roberts wrote:
>> To the equivalent code with struct:
>
>> import struct
>
>> dscrp = "H?fs5B"
>
>> f = open('file.dat')
>> stuff = struct.unpack( dscrp, f.read() )
>
>> print stuff
>
>> In both cases, you have to KNOW the format of the data beforehand. If you
>> do a read_short where you happen to have written a float, disaster ensues.
>
>> I don't really see that you've added very much.
>
>I thought much the same.
>However notice your f.read(). Its type is string.
>
>What if file.dat is a 1GB wav file?
f.seek(512000)
stuff = struct.unpack( dscrp, f.read(128) )
The point is that files already know how to position themselves.
--
Tim Roberts, t...@probo.com
Providenza & Boekelheide, Inc.
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