On Thursday 08 May 2008 00:03, Keith Suda-Cederquist wrote: > So I started commenting things out until I isolated the problem. > For some reason when I plot some of the data using > pylab/matplotlib, then close the figure using pylab.close() the > memory doesn't get cleared. (I left this part out of my psedo-code > in my previous post--Sorry!).
I can reproduce this behavior with the QT-Agg backend on my computer too. However when I use a non-interactive backend, the problem goes away. Backends are explained here: http://matplotlib.sourceforge.net/backends.html Here's an example script. The memory usage remains constant. Without lines 1 and 2 however the memory usage increases continuously during the for loop. [EMAIL PROTECTED]:~> ipython Total number of aliases: 15 Python 2.5 (r25:51908, Jan 10 2008, 17:55:29) Type "copyright", "credits" or "license" for more information. IPython 0.7.2 -- An enhanced Interactive Python. ? -> Introduction to IPython's features. %magic -> Information about IPython's 'magic' % functions. help -> Python's own help system. object? -> Details about 'object'. ?object also works, ?? prints more. In [1]:import matplotlib In [2]:matplotlib.use('Agg') In [3]:import pylab as pl In [4]:for i in range(1000): .4.: pl.figure() .4.: pl.plot([1,2,3]) .4.: pl.close() .3.: < lines deleted > Out[4]:[<matplotlib.lines.Line2D instance at 0x8867bec>] Out[4]:<matplotlib.figure.Figure instance at 0x81b8a4c> Out[4]:[<matplotlib.lines.Line2D instance at 0x8867a8c>] In [5]: Kind regards, Eke. _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
