matplotlib

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)

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 <oren@...> 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.htmland 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 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()
>
>

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 <oren@... 
> <mailto:oren@...>> 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