[Numpy-discussion] Memory leak with matrices?
David Paul Reichert
D.P.Reichert@sms.ed.ac...
Tue Mar 9 11:31:03 CST 2010
Hi,
I've got two issues:
First, the following seems to cause a memory leak,
using numpy 1.3.0:
a = matrix(ones(1))
while True:
a += 0
This only seems to happen when a is a matrix rather
than an array, and when the short hand '+=' is used.
Second, I'm not sure whether that's a bug or whether
I just don't understand what's going on, but when a is a column
array, (e.g. a = ones((10, 1))), then
a -= a[0,:]
only subtracts from a[0, 0], whereas not using the short hand
or using something else than a on the righthand side seems
to subtract from all rows as expected.
Thanks a lot,
David
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