Converting data to little endian

[victor_ng]

Hi, I was wondering how to get my data to be represented in little
endian format. I know that I can use the socket functions to convert to
network byte order (big endian), but I need to convert to little endian
(not just the host byte order).

Vic


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[Andrew MacIntyre]

Post by victor_ng
Hi, I was wondering how to get my data to be represented in little
endian format. I know that I can use the socket functions to convert to
network byte order (big endian), but I need to convert to little endian
(not just the host byte order).

module struct?

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Andrew I MacIntyre "These thoughts are mine alone..."
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[Fredrik Lundh]

Post by victor_ng
Hi, I was wondering how to get my data to be represented in little
endian format. I know that I can use the socket functions to convert to
network byte order (big endian), but I need to convert to little endian
(not just the host byte order).

One possibility is to use the NumPy extensions and store your data in a
multiarray object. There is a byteswapped method of the multiarray object
that lets you byteswap your data.

footnote: the standard array module also provides

Post by victor_ng

import array
a = array.array("i", [1, 2])
a

array('i', [1, 2])

Post by victor_ng

a.byteswap()
a

array('i', [16777216, 33554432])

There is also a way to check the endianness of your machine (so
you can determine whether or not to byteswap).

from array-example-4.py in the eff-bot guide:

def little_endian():
return ord(array.array("i",[1]).tostring()[0])

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