struct.unpack on 64-bit platforms

[Georg Brandl]

Nadav Samet wrote:
> Hi,
> 
> I am trying to unpack a 32-bit unsigned integer from a string using
> struct.unpack.
> so using string.unpack('L', data)  would work fine on 32-bit systems,
> 
> But apparently, on 64-bit platforms it tries to read 64-bit unsigned
> integer (since
> that's what the C Type unsigned long means on 64-bit platforms).
> 
> So what's the way to make it read exactly 32-bits, on all platforms?

Looking into the docs, prepending your format string with "=" should
make "L" exactly 32 bits on each platform.

Georg