[Matplotlib-users] memory leak on MacOS with TkAgg

I'm seeing a memory leak with calls to subplot.clear() and canvas.draw() on MacOS. The same code shows no leakage on unix. Here is a simple script that demonstrates the problem. #!/usr/bin/env python from __future__ import division """Demonstrate a memory leak in matplotlib on MacOS with TkAgg

[Matplotlib-users] Memory leak when using pyplot.ion() ?

Hi, I am having problems with a script. It runs a number of iterations and plots and saves a number of plots on each iteration. After the plots have been saved I issue the pyplot.close('all') command so despite many plots being created only 4 should be open at any given time which should not ca

Re: [Matplotlib-users] Memory leak when using pyplot.ion() ?

2013/10/14 Mark Lawrence : > On 14/10/2013 13:51, OCuanachain, Oisin (Oisin) wrote: >> Hi, >> >> I am having problems with a script. It runs a number of iterations and >> plots and saves a number of plots on each iteration. After the plots >> have been saved I issue the pyplot.close(‘all’) command

Re: [Matplotlib-users] Memory leak when using pyplot.ion() ?

On 14/10/2013 13:51, OCuanachain, Oisin (Oisin) wrote: > Hi, > > I am having problems with a script. It runs a number of iterations and > plots and saves a number of plots on each iteration. After the plots > have been saved I issue the pyplot.close(‘all’) command so despite many > plots being crea

Re: [Matplotlib-users] Memory leak when using pyplot.ion() ?

I haven't had a chance to look into where the memory is actually leaking, ion/ioff are intended for interactive use, and here you are saving a large number of plots to files. Why do you need ion at all? Mike On 10/14/2013 08:51 AM, OCuanachain, Oisin (Oisin) wrote: Hi, I am having problems

[Matplotlib-users] Memory leak when using pyplot.ion() ?

Hi, I am having problems with a script. It runs a number of iterations and plots and saves a number of plots on each iteration. After the plots have been saved I issue the pyplot.close('all') command so despite many plots being created only 4 should be open at any given time which should not ca

Re: [Matplotlib-users] Memory leak involving matplotlib in webapplication

I use matplotlib 1.1 and numpy 1.5.0 gc.collect() after the function call solved the problem! Thanks alot! Den torsdagen den 13:e oktober 2011 skrev John Hunter: > On Thu, Oct 13, 2011 at 12:42 AM, Viktor Forsman > wrote: >> Hi, >> >> I have problems with a memory leak in a webapplication involv

Re: [Matplotlib-users] Memory leak involving matplotlib in webapplication

On Thu, Oct 13, 2011 at 12:42 AM, Viktor Forsman wrote: > Hi, > > I have problems with a memory leak in a webapplication involving matplotlib. > Basically, I have a function which usies the OO way of generating the graph, > printing it to a StringIO object and returning that. I've posted a questio

[Matplotlib-users] Memory leak involving matplotlib in webapplication

Hi, I have problems with a memory leak in a webapplication involving matplotlib. Basically, I have a function which usies the OO way of generating the graph, printing it to a StringIO object and returning that. I've posted a question with the details on stackoverflow ( http://stackoverflow.com/que

Re: [Matplotlib-users] Memory leak - canvas.draw() + pyqt4

2011 21:22:45 +0400 > From: ? ??? > Subject: [Matplotlib-users] Memory leak - canvas.draw() + pyqt4 > To:matplotlib-users@lists.sourceforge.net > Message-ID: > Content-Type: text/plain; charset="utf-8" > > Memory leak - canvas.draw() + pyqt4 > Hi, my name is Sto

[Matplotlib-users] Memory leak - canvas.draw() + pyqt4

Memory leak - canvas.draw() + pyqt4 Hi, my name is Stoyan.     I use the following packages: python 2.6 , PyQt 4.8.5-1, numpy 1.6 and matplotlib 1.0.1. In my program Matplotlib library I have used a GUI application created by "PyQt". In the program there is a loop that updates a graph by callin

Re: [Matplotlib-users] Memory leak; user error or bug?

I just tried calling subplot.clear() just before calling canvas.draw(). Interestingly enough it increases the memory leak rate by roughly 50%! By the way, the minimal script is available here if you want to try it:

Re: [Matplotlib-users] Memory leak; user error or bug?

I've boiled it down to nearly nothing as a script attached to this bug report: it simply creates an Axis and then regularly shifts the x axis limits and calls canvas.draw() to display the change. (It also reports

Re: [Matplotlib-users] Memory leak; user error or bug?

2010/12/12 Russell Owen : > Simply creating a blank Axes and calling canvas.draw() leaks memory -- even > without displaying any data or shifting the x axes. Okay, as a workaround have you tried ax.clear()? So the example script provided by you can be boiled down further? I'm using ax.clear() i

Re: [Matplotlib-users] Memory leak; user error or bug?

I am sort of adding data points; what I'm really doing is appending data to a python list and setting the data in the Line object to that list. The list gets shortened every once in awhile to keep the amount of data from getting too large. It turns out the leak is in canvas.draw(), which I call

Re: [Matplotlib-users] Memory leak; user error or bug?

2010/12/1 Russell E. Owen : > I'm seeing a nasty memory leak in my strip chart widget using matplotlib > 1.0, TkAgg and Mac OS X 10.5 > > I've posted a minimal version here: > py> > > It doesn't seem to matter if I use the

Re: [Matplotlib-users] memory "leak" caused by canvas.draw()

On Thu, Dec 9, 2010 at 5:00 PM, Russell E. Owen wrote: > I explored the memory leak in my strip chart widget some more and found > that it is caused by calling canvas.draw(), where canvas is: > > figure = matplotlib.figure.Figure(figsize=(8, 2), frameon=True) > canvas = FigureCanvasTkAgg(figure, s

[Matplotlib-users] memory "leak" caused by canvas.draw()

I explored the memory leak in my strip chart widget some more and found that it is caused by calling canvas.draw(), where canvas is: figure = matplotlib.figure.Figure(figsize=(8, 2), frameon=True) canvas = FigureCanvasTkAgg(figure, self) canvas.show() exhibits exactly the same problem. So...wha

Re: [Matplotlib-users] Memory leak; user error or bug?

23 MB RPRVT @ 7:52 PM 40 MB RPRVT @ 8:07 PM matplotlib 1.0.0 OSX 10.6.5 python.org python, 2.6.6 On Wed, Dec 1, 2010 at 6:53 PM, Russell E. Owen wrote: > In article <4cf69ba4.1000...@stsci.edu>, > Michael Droettboom > wrote: > > > On 12/01/2010 01:40 PM, Russell E. Owen wrote: > > > I'm see

Re: [Matplotlib-users] Memory leak; user error or bug?

In article <4cf69ba4.1000...@stsci.edu>, Michael Droettboom wrote: > On 12/01/2010 01:40 PM, Russell E. Owen wrote: > > I'm seeing a nasty memory leak in my strip chart widget using matplotlib > > 1.0, TkAgg and Mac OS X 10.5 > > > > I've posted a minimal version here: > >

Re: [Matplotlib-users] Memory leak; user error or bug?

On 12/01/2010 01:40 PM, Russell E. Owen wrote: > I'm seeing a nasty memory leak in my strip chart widget using matplotlib > 1.0, TkAgg and Mac OS X 10.5 > > I've posted a minimal version here: > py> > > It doesn't seem to m

[Matplotlib-users] Memory leak; user error or bug?

I'm seeing a nasty memory leak in my strip chart widget using matplotlib 1.0, TkAgg and Mac OS X 10.5 I've posted a minimal version here: It doesn't seem to matter if I use the animation API or not (the example does n

[Matplotlib-users] Memory leak

Hello I have encountered memory leak when using pylab.figure(), pylab.show(), pylab.close(). I expected pylab.close() to flush the memory but this was not the case. what am i doing wrong? Thanks in advance Below is simple example import os, sys, time import gc import matplotlib matplotlib.use('T

[Matplotlib-users] memory leak for GTKAgg animation

Hunter [mailto:jdh2...@gmail.com] Sent: Sunday, February 14, 2010 7:39 PM To: John Jameson Cc: matplotlib-users@lists.sourceforge.net; Michael Droettboom Subject: Re: [Matplotlib-users] memory leak for GTKAgg animation On Sat, Feb 13, 2010 at 2:53 PM, John Jameson wrote: > HI, > I find th

Re: [Matplotlib-users] memory leak for GTKAgg animation

On Sat, Feb 13, 2010 at 2:53 PM, John Jameson wrote: > HI, > I find the very basic animation below has a memory leak (my pagefile usage > number keeps growing in the Windows XP Windows Task Manager Performance > graph).I don't see this with the "animation_blit_gtk.py" example on: > > http://matplo

[Matplotlib-users] memory leak for GTKAgg animation

HI, I find the very basic animation below has a memory leak (my pagefile usage number keeps growing in the Windows XP Windows Task Manager Performance graph).I don't see this with the "animation_blit_gtk.py" example on: http://matplotlib.sourceforge.net/examples/index.html (which I used as a star

Re: [Matplotlib-users] Memory leak when destroying Tk frame containing a figure

Calling the garbage collector (gc.collect()) also makes no difference. Even deleting all references manually and dropping the toolbar code doesn't do the trick. Am 09.02.2010 16:19, schrieb Stephan Markus: > I already had my destroy() method look like this: > > def destroy(self): > se

Re: [Matplotlib-users] Memory leak when destroying Tk frame containing a figure

I already had my destroy() method look like this: def destroy(self): self.f.clf() Tix.Frame.destroy(self) self.toolbar.destroy() self.canvas._tkcanvas.destroy() But it makes no difference. Stephan Am 08.02.2010 17:15, schrieb Michael Droettboom: > Have you t

Re: [Matplotlib-users] Memory leak when destroying Tk frame containing a figure

Have you tried explicitly calling .clf() on the matplotlib Figure object from your Tix.Frame.destroy callback? Mike -- The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data

[Matplotlib-users] Memory leak when destroying Tk frame containing a figure

 Hello! I'm writing an application that will show different plots on it's GUI. In order to switch between the different plot types I'd like to destroy the first plot and to create a new afterwards. I stumbled into a memory leak since I don't know how to close matplotlib figures the clean way. I wro

[Matplotlib-users] Memory leak when destroying Tk frame containing a figure

Hello! I'm writing an application that will show different plots on it's GUI. In order to switch between the different plot types I'd like to destroy the first plot and to create a new afterwards. I stumbled into a memory leak since I don't know how to close matplotlib figures the clean way. I w

Re: [Matplotlib-users] Memory leak in pcolor?

Teemu Ikonen wrote: > Hi all, > > Typing this (on ipython prompt with the relevant libraries imported) > > x = linspace(0,1.0,500) > y = linspace(0,1.0,500) > xg,yg = meshgrid(x,y) > c = rand(len(x), len(y)) > pcolor(xg,yg,c) > > Makes the ipython process to grow to have about 400 Mb of resident

[Matplotlib-users] Memory leak in pcolor?

Hi all, Typing this (on ipython prompt with the relevant libraries imported) x = linspace(0,1.0,500) y = linspace(0,1.0,500) xg,yg = meshgrid(x,y) c = rand(len(x), len(y)) pcolor(xg,yg,c) Makes the ipython process to grow to have about 400 Mb of resident memory and it takes ages for the plot to

Re: [Matplotlib-users] Memory leak somewhere?

You made my day! Long life to The "close()" All my ram and swap file was sucked every time a run my script to generate 260 png images...almost killing my ubuntu! On Tue, May 26, 2009 at 2:23 PM, John Hunter wrote: > On Tue, May 26, 2009 at 7:39 AM, Michael Droettboom > wrote: > > Does it help

Re: [Matplotlib-users] memory leak with PyQt4 plus savefig or print_figure

On Wed, Jul 22, 2009 at 6:36 AM, Alexander Baker wrote: > > > Ralph, > > Perhaps time to migrate to Chaco API from Enthought? not sure if there is > Ubuntu support yet however. Alex, I assume you did not mean to send this to the list... Anyway, matplotlib is a central part of my application and

Re: [Matplotlib-users] memory leak with PyQt4 plus savefig or print_figure

Ralph, Perhaps time to migrate to Chaco API from Enthought? not sure if there is Ubuntu support yet however. Alex Baker http://code.enthought.com/chaco/ Ralf Gommers-2 wrote: > > Hi, > > I am working on a PyQt4 application with some embedded MPL figures, and am > also trying to save some f

Re: [Matplotlib-users] memory leak with PyQt4 plus savefig or print_figure

sorry, i replied to Mike and not to the list. see below. On Thu, Jul 2, 2009 at 2:57 PM, Ralf Gommers wrote: > Thanks for looking into this Mike. > > On Thu, Jul 2, 2009 at 10:39 AM, Michael Droettboom wrote: > >> It is not surprising that memory usage is much lower without printing the >> plot.

[Matplotlib-users] memory leak with PyQt4 plus savefig or print_figure

Hi, I am working on a PyQt4 application with some embedded MPL figures, and am also trying to save some figures as png's without displaying them. I am observing huge memory increases (10s or 100s of Mb) the moment I try to save a png. I reproduced the issue by combining two mpl examples, http://ma

Re: [Matplotlib-users] Memory leak somewhere?

On Tue, May 26, 2009 at 7:39 AM, Michael Droettboom wrote: > Does it help if you add a call to "plt.clf()" to the bottom of the loop? > > The pyplot interface keeps a reference around to every figure created > until they are destroyed so that it can be obtained again by number > (this is functiona

Re: [Matplotlib-users] Memory leak somewhere?

Does it help if you add a call to "plt.clf()" to the bottom of the loop? The pyplot interface keeps a reference around to every figure created until they are destroyed so that it can be obtained again by number (this is functionality inspired by matlab). Alternatively, you can use the object-o

[Matplotlib-users] Memory leak somewhere?

I was trying to use matplotlib to plot a series of 2D images, but python was using up a large amount of RAM very quickly. I don't know matplotlib that well, so the chance are I am missing something, would appreciate it if anyone can point me to the right direction. I am using: Python 2.4.3 (#1, Ja

Re: [Matplotlib-users] Memory leak in Agg backend?

I forgot to mention that it seems like the issue is related to the Figure object (and not any foreign language extensions?). When a fig.clf() is added before the call to report_memory the memory usage is constant. Since I am reusing the Figure instance this is a problem for me. But maybe I just nee

Re: [Matplotlib-users] Memory leak in Agg backend?

Hi Michael and others, Sorry for the late answer. I am on Ubuntu 8.10. Unfortunately I have not had time to look any more into the issue (which might very well be an error on my part) but I will return when I have more info (I have made a temporary fix). I tried using valgrind-massif to reproduce

Re: [Matplotlib-users] Memory leak in Agg backend?

Well, I have never used it before but here is the output from valgrind masstif, can you figure out something from this? The mem usage from python was still increasing. Andres Michael Droettboom wrote: Are you able to run it inside of valgrind's massif tool? Calling out to ps can be a bit spu

Re: [Matplotlib-users] Memory leak in Agg backend?

Are you able to run it inside of valgrind's massif tool? Calling out to ps can be a bit spurious (particularly with a memory-pooling Python build) especially for a leak this small. Mike Andres Luhamaa wrote: > Michael Droettboom wrote: > >> I am not able to reproduce this leak here with 0.9

Re: [Matplotlib-users] Memory leak in Agg backend?

Michael Droettboom wrote: > I am not able to reproduce this leak here with 0.98.6svn from today on > RHEL4. What platform are you on? > > (See attached massif profile -- the memory usage is flat...) > > Mike Well, in my setup I see similar behaviour as in the initial question. Ubuntu 8.10 32bit,

[Matplotlib-users] Memory leak in Agg backend?

Hi matplotlib developers and users, I have had some problems with a memory leak in a long running matplotlib based web application that I have developed (www.worldwildweather.com). I believe the problem is due to a memory leak in the Agg backend but I am not sure. Below is a script which for me re

[Matplotlib-users] memory leak

Hi, I have noticed a memory leak when using pylab.pcolor. Here is the code, fa() and fb() do the same thing. The difference is the size of the array which is passed to pcolor. With a large array pcolor leaks but not with a small one. Cheers, Ben import numpy as np import matplotlib matplotlib.use

Re: [Matplotlib-users] memory leak in basemap 0.98?

Mike Bauer wrote: > Jeff, > > Using Python 2.6 results in the following Deprecation Warnings: > > /usr/local/lib/python2.6/site-packages/pytz/tzinfo.py:5: > DeprecationWarning: the sets module is deprecated > from sets import Set > /usr/local/lib/python2.6/site-packages/httplib2/__init__.py:29:

Re: [Matplotlib-users] memory leak in basemap 0.98?

Mike Bauer wrote: > I've been testing matplotlib and basemap (0.98.x and 0.99.x via svn > source) and python 2.6 (via svn) on ubuntu 8.04 (AMD-64). > > I noticed that calling basemap in a loop results in a fairly steep > linear increase in memory use; I burn though 6 Gb in a minute. > > Putting a

[Matplotlib-users] memory leak in basemap 0.98?

I've been testing matplotlib and basemap (0.98.x and 0.99.x via svn source) and python 2.6 (via svn) on ubuntu 8.04 (AMD-64). I noticed that calling basemap in a loop results in a fairly steep linear increase in memory use; I burn though 6 Gb in a minute. Putting a loop in plotmap.py from the pro

[Matplotlib-users] memory leak in Agg backend

Hi all, a few hours ago I have wtitten for a possible memory leak in Agg backend. It was my fault. It was a bad placement of matplotlibrc file. Sorry for the raised alarm. Instead i am glad to say that I have checked for the Agg backend with a for statement of opening a figure, drawing, saving and

Re: [Matplotlib-users] Memory leak using matplotlib

Eric, Not much progress, I think. Memory leaks seem endemic to the gui backends, although Tk is by far the worst. I have been trying to understand the gtk case in the hope of discovering some simple change in mpl code that might eliminate the problem there and turn out to be applicable to th

[Matplotlib-users] Memory leak using matplotlib

Hi evebrybody, I started a discussion one week ago about a problem of memory leak using the following code: from Tkinter import * from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg impo

Re: [Matplotlib-users] Memory leak in basemap or matplotlib

John Hunter wrote: > On 3/26/07, Jeff Whitaker <[EMAIL PROTECTED]> wrote: >> John Hunter wrote: > >> John: Nope, that has no effect. What does cla clean up that clf doesn't? > > Well, it flushes all the lines, removes the ticks, that kind of thing. > But fig.clear sets > > self.axes = [] > >

Re: [Matplotlib-users] Memory leak in basemap or matplotlib

On 3/26/07, Jeff Whitaker <[EMAIL PROTECTED]> wrote: > John Hunter wrote: > John: Nope, that has no effect. What does cla clean up that clf doesn't? Well, it flushes all the lines, removes the ticks, that kind of thing. But fig.clear sets self.axes = [] so if there are no references to the a

Re: [Matplotlib-users] Memory leak in basemap or matplotlib

John Hunter wrote: > On 3/26/07, Jeff Whitaker <[EMAIL PROTECTED]> wrote: > >> Jesper: For now I recommend adding 'pylab.cla()' after the fig.clear() >> as a workaround. I don't really understand why that is necessary - >> perhaps John or Eric can clarify whether this is indeed a bug. > > I sugge

Re: [Matplotlib-users] Memory leak in basemap or matplotlib

On 3/26/07, Jeff Whitaker <[EMAIL PROTECTED]> wrote: > Jesper: For now I recommend adding 'pylab.cla()' after the fig.clear() > as a workaround. I don't really understand why that is necessary - > perhaps John or Eric can clarify whether this is indeed a bug. I suggest adding a gc.collect afte

Re: [Matplotlib-users] Memory leak in basemap or matplotlib

Eric Firing wrote: > Jeff Whitaker wrote: >> Jesper Larsen wrote: >>> Hi matplotlib users, >>> >>> I'm using matplotlib for a long running process. Unfortunately the >>> memory usage continue to grow as the process runs. I have appended a >>> simple example which illustrates this at the end of th

Re: [Matplotlib-users] Memory leak in basemap or matplotlib

Jeff Whitaker wrote: Jesper Larsen wrote: Hi matplotlib users, I'm using matplotlib for a long running process. Unfortunately the memory usage continue to grow as the process runs. I have appended a simple example which illustrates this at the end of this mail. Unfortunately I haven't figure

Re: [Matplotlib-users] Memory leak in basemap or matplotlib

Jesper Larsen wrote: > Hi matplotlib users, > > I'm using matplotlib for a long running process. Unfortunately the memory > usage continue to grow as the process runs. I have appended a simple example > which illustrates this at the end of this mail. Unfortunately I haven't > figured out how to

Re: [Matplotlib-users] Memory leak in basemap or matplotlib

Jesper Larsen wrote: > Hi matplotlib users, > > I'm using matplotlib for a long running process. Unfortunately the memory > usage continue to grow as the process runs. I have appended a simple example > which illustrates this at the end of this mail. Unfortunately I haven't > figured out how to

[Matplotlib-users] Memory leak in basemap or matplotlib

Hi matplotlib users, I'm using matplotlib for a long running process. Unfortunately the memory usage continue to grow as the process runs. I have appended a simple example which illustrates this at the end of this mail. Unfortunately I haven't figured out how to use the information obtainable f

[Matplotlib-users] Memory leak with FigureCanvasTk

Hi, I have a problem of memory leak using the following code: from Tkinter import * from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg import pylab def display(): mat = pylab.zer

[Matplotlib-users] Memory leak & Tkinter?

First, I'm new to Matplotlib (and Python!), so apologies in advance if I'm missing something obvious. I'm running on XP, Numpy ver. 1.0.1, Matplotlib ver. 0.87.7, Python ver. 2.4.3 I'm trying to create several plots. I noticed that after saving each plot my script's memory footprint increases by

Re: [Matplotlib-users] memory leak in matplotlib wxApp?

> "Olivier" == Olivier ATTEIA <[EMAIL PROTECTED]> writes: Olivier> Hello, sorry to bother you but I did not find a reply Olivier> elsewhere, I am using matplotlib with python 2.4 and Olivier> windows XP and it is a really nice tool. It is inside a Olivier> wxapplication. I hav