Re: [Matplotlib-users] Memory leakage in matplotlib 1.0.1 with wx 2.8.11.0

[Michael D. <md...@st...>]

The repository is now on github, so if you want the very latest, you 
should get it from here:

https://github.com/matplotlib/matplotlib

(We haven't done a terribly good job of advertising that change).

I'm not seeing any leak myself with your script with matplotlib HEAD 
plus this pull request:

https://github.com/matplotlib/matplotlib/pull/89

so we may be getting to the bottom of this type of leak.

Mike

On 04/20/2011 05:18 PM, Oren Gampel wrote:
> I have now tested this with version 1.1.0svn from the trunk of the dev 
> repository. I believe this version contains Michael Droettboo's patch 
> for pyCXX. ( 
> https://sourceforge.net/tracker/index.php?func=detail&aid=3115633&group_id=3180&atid=103180 
> <https://sourceforge.net/tracker/index.php?func=detail&aid=3115633&group_id=3180&atid=103180> 
> )
>
> Unfortunately the leak is still evident in the small script I've 
> attached. Again, please note that this script has no axes, plots, or 
> drawn components, only an empty canvas that is being redrawn and 
> causes the memory growth.
>
> Any ideas how to resolve this or further debug this?
>
> Thanks for your help,
> Oren
>
> On Mon, Apr 11, 2011 at 6:37 PM, Oren Gampel <or...@fu... 
> <mailto:or...@fu...>> wrote:
>
>     I'm having a memory leakage using matplotlib 1.0.1 with wx
>     2.8.11.0, on windows XP.
>
>     To reproduce, I used the sample from here:
>     http://matplotlib.sourceforge.net/examples/animation/dynamic_image_wxagg2.html
>     and deleted most of the significant lines (see below). I only
>     create a canvas but I don't create any axes, nor plot any data.
>     The only thing I do is draw() on a timer event. This makes my
>     process grow about 6Mbyte per minute.
>
>     Is this reproduced in other environments? Any ideas on how to
>     resolve this?
>
>     Thanks,
>     Oren
>
>
>     """
>     Copyright (C) 2003-2005 Jeremy O'Donoghue and others
>
>     License: This work is licensed under the PSF. A copy should be
>     included
>     with this source code, and is also available at
>     http://www.python.org/psf/license.html
>
>     """
>     import sys, time, os, gc
>
>     import matplotlib
>     matplotlib.use('WXAgg')
>
>     from matplotlib import rcParams
>     import numpy as npy
>
>     import matplotlib.cm <http://matplotlib.cm> as cm
>
>     from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg
>     from matplotlib.backends.backend_wx import NavigationToolbar2Wx
>
>     from matplotlib.figure import Figure
>     from wx import *
>
>
>     TIMER_ID = NewId()
>
>     class PlotFigure(Frame):
>
>         def __init__(self):
>             Frame.__init__(self, None, -1, "Test embedded wxFigure")
>
>             self.fig = Figure((1,1), 50, facecolor='.95')
>             self.canvas = FigureCanvasWxAgg(self, -1, self.fig)
>             # Now put all into a sizer
>             sizer = wx.BoxSizer(wx.VERTICAL)
>             # This way of adding to sizer allows resizing
>             sizer.Add(self.canvas, 1, wx.LEFT|wx.TOP|wx.GROW)
>             self.SetSizer(sizer)
>             self.Fit()
>
>             self._price_ax = self.fig.add_subplot(111)
>
>
>             wx.EVT_TIMER(self, TIMER_ID, self.onTimer)
>             self.t = wx.Timer(self, TIMER_ID)
>             self.t.Start(1000)
>
>         def onTimer(self, evt):
>             self.canvas.draw()
>
>
>     if __name__ == '__main__':
>         app = PySimpleApp()
>         frame = PlotFigure()
>         # Initialise the timer - wxPython requires this to be connected to
>         # the receiving event handler
>         t = Timer(frame, TIMER_ID)
>         t.Start(100)
>
>         frame.Show()
>         app.MainLoop()
>
>
>
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-- 
Michael Droettboom
Science Software Branch
Space Telescope Science Institute
Baltimore, Maryland, USA