lists <-> tuple

Robert Kern robert.kern at
Thu Nov 3 00:34:47 CET 2005

Peter Notebaert wrote:
> I am new to Python and have to create an import library in C that uses 
> matrices.
> These matrices can be one-dimensional (vectors) or two-dimensional. If I 
> look in the ActivePython 2.4 documentation at data structures, then I see at 
> least 2 posibilities to represent them: Lists and Tuples.
> The documention doesn't give me much information on what the best choice is 
> for the data type to provide/return these matrices.
> So my question is, should I use lists or tuples to represent my matrices in 
> and why?

You'll probably want to use scipy_core. It's a package designed
specifically to deal with multidimensional arrays of homogeneous,
(usually) numeric data.

Robert Kern
rkern at

"In the fields of hell where the grass grows high
 Are the graves of dreams allowed to die."
  -- Richard Harter

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