[Python-ideas] Struct format with multiple endianness markers

[Guido van Rossum]

Simple and elegant. Can you submit a patch? One suggestion: disallow
endianness marker if there isn't one at the start (i.e. default).
On Jul 21, 2014 5:44 PM, "Greg Ewing" <greg.ewing at canterbury.ac.nz> wrote:

> I'd like to propose a small enhancement to the
> struct module: Allow the endianness characters to
> occur more than once in the format string,
> rather than just as the first character.
>
> My use case is reading ESRI shapefile headers, which
> mix big and little endian data. This means I can't
> use a single struct.unpack call to read what is
> logically a single structure, but have to split it
> up and use multiple calls.
>
> If I could switch endianness part way through
> the format, I could unpack the whole structure
> with a single call.
>
> --
> Greg
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