You are importing pylab again before each plot. You have loaded it before.
for i,t in enumerate(times):
import pylab as pl # <--ERASE THIS
On Wed, Jun 15, 2011 at 12:10 PM, Alain Pascal Frances
<[email protected]> wrote:
> Hi,
>
> I have a script that creates and saves figures in a loop. The memory is
> increasing at each figure and is not released back, rising a Memory error.
> I used the close() function on the figure object as well as gc.collect(), but
> no effect.
>
> I searched on the net and found a similar problem at
> http://stackoverflow.com/questions/3623600/python-matplotlib-memory-not-being-released-when-specifying-figure-size.
> The problem here was solved using the close() function but in my case, as
> refered before, it doens't work (see code below).
>
> I'm using Python 2.6.6, matplotlib 1.0.1, WXagg as backend, on windows7.
>
> Thanks for help!
>
> Alain
>
>
> CODE:
>
> import pylab as pl
> import os, tempfile
> def plot_density(filename,i,t,psi_Na):
> pl.figure(figsize=(8,6))
> pl.imshow(abs(psi_Na)**2,origin = 'lower')
> filename = os.path.join(tempfile.gettempdir(), filename + '_%04d.png'%i)
> pl.savefig(filename)
> pl.clf()
> pl.close()
> if __name__ == "__main__":
> x = pl.linspace(-6e-6,6e-6,128,endpoint=False)
> y = pl.linspace(-6e-6,6e-6,128,endpoint=False)
> X,Y = pl.meshgrid(x,y)
> k = 1000000
> omega = 200
> times = pl.linspace(0,100e-3,100,endpoint=False)
> for i,t in enumerate(times):
> import pylab as pl
> psi_Na = pl.sin(k*X-omega*t)
> plot_density('wavefunction',i,t,psi_Na)
> print i
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