I have the same problem.  I tried the del command below, but foundon that it removes the names of the ndarrays from memory, but does not free up the memory on my XP system (python 2.5.2, numpy 1.2.1).  Regular python objects release their memory when I use the del command, but it looks like the ndarray objects do not.

On Mon, Dec 8, 2008 at 22:00, Travis Vaught <travis@enthought.com> wrote:
Try:

del(myvariable)

Travis

On Dec 8, 2008, at 7:15 PM, frank wang <f.yw@hotmail.com> wrote:

Hi,
 
I have a program with some variables consume a lot of memory. The first time I run it, it is fine. The second time I run it, I will get MemoryError. If I close the ipython and reopen it again, then I can run the program once. I am looking for a command to delete the intermediate variable once it is not used to save memory like in matlab clear command.
 
Thanks
 
Frank

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