efficient in-place byte modifications

[Chris Barker]

Cimarron Taylor wrote:
>The thing is, I need to
> do a lot of separate in-place modifications of the contents
> of the packets, so using (immutable) strings for packets
> probably won't work.
> 
> I think my remaining options are to:
> 
> 1. use the array module for the buffers

This sounds perfect to me...

> 2. figure out how to use the "coming-soon" buffer object
>    and the readinto call
> 3. code the buffers in C and wrap accordingly
> 4. do something else (use tuples?)

Tuples won't work, they are immutable, so you can't change just one item
without re-building hte whole thing. Lists would work, but there is no
native one-byte data type, so you would ahve a list of one character
stings, which might be a bit much overhead.

Youd also use NumPy arrays (http://sourceforge.net/projects/numpy), I'm
not sure they will give you anything you can't gt from the array module
for your purpose, but they have a lot of other nifty features!

-Chris




-- 
Christopher Barker,
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