[Numpy-discussion] memory leak?

[Brian Blais]

Hello,

I have the following code, where I noticed a memory leak with +=, but  
not with + alone.
import numpy

m=numpy.matrix(numpy.ones((23,23)))

for i in range(10000000):
     m+=0.0  # keeps growing in memory
     #    m=m+0.0  # is stable in memory


My version of python is 2.5, numpy 1.3.0, but it also causes memory  
build-up in 2.6 with numpy 1.4.0, as distributed by the Enthought  
Python Distribution.

It's easy to work around, but could cause someone some problems.    
Anyone else get this?


			bb

-- 
Brian Blais
bblais at bryant.edu
http://web.bryant.edu/~bblais
http://bblais.blogspot.com/