Re: [Pysparse-users] ambiguous error using solvers: TypeError: matvec() takes exactly 2 arguments (3 given)

[Jonathan G. <gu...@ni...>]

On Jun 14, 2011, at 9:25 AM, Dominique Orban wrote:

> As you may know, Pysparse used to be part of Scipy several years ago. For some reason, the Scipy folks decided to write their own sparse matrix library. 

I don't believe that's exactly true. In the course of refactoring their already existing sparse code several years ago (around 2005), the scipy developers imported Pysparse to see if there were things they could gain from Pysparse (Pysparse' LU solver is dramatically faster, for instance). I don't know that Pysparse was ultimately used much in that refactoring and I think it has subsequently been removed from the scipy codebase.

I seem to recall that Roman indicated to us many years ago that he's not interested in merging pysparse into a larger suite like scipy; that he prefers individually maintained small packages to large monolithic systems.