detect endianness of a binary with python

[Daniel Fetchinson]

>>> Something like the "file" utility for linux would be very helpfull.
>>>
>>> Any help is appreciated.
>
>>You're going to have to describe in detail what's in the file before
>>anybody can help.
>
> We are creating inside our buildsystem for an embedded system  a cram
> filesystem
> image. Later on inside our build process we have to check the endianness,
> because it could be Little Endian or big endian (arm or ppc).
>
> The output of the "file" tool is for a little endian cramfs image:
> <ourImage>: Linux Compressed ROM File System data, little endian size
> 1875968
> version #2 sorted_dirs CRC 0x8721dfc0, edition 0, 462 blocks, 10 files
>
> It would be possible to execute
> ret = os.system("file <ourImage> | grep "little endian")
> and evaluate the return code.
> But I don't like to evaluate a piped system command. If there is an way
> without
> using the os.system command this would be great.
>

Please see http://pypi.python.org/pypi/python-magic

HTH,
Daniel


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