On 2014/08/15, 9:37 AM, Derek Homeier wrote: > When using MPL with ipython —pylab and the Quartz version of PyQT4, > the interpreter seems to be slow down extremely after running for a > little while. Weirdly this is not connected to any graphics display > and in fact happens even without any plotting window opened, i.e. the > ipython shell just randomly becomes completely unresponsive and hangs > for several seconds on simple tasks like typing or navigating through > history. The plotting itself actually does not appear to perform any > worse than it used to under Mountain Lion.
[I'm switching the subject because my comments below relate to ipython and matplotlib, and are no longer Anaconda-specific.] Derek, Thanks. A few days ago, when I switched from testing on linux to testing on osx, exactly this ipython slowdown was happening to me--but I lost track of what combination of versions and invocations was causing it. Therefore I have been concentrating on the severe problem which was, for me, 100% repeatable, and involved macosx backend, not Qt. I expect the macosx-relatec problem will go away after Ilan uploads the revised Anaconda ipython for python 3. Now I find I can repeat the ipython problem on Homebrew python 3 (framework--with Quartz app) and Anaconda with the un-fixed ipython (which is running without starting a Quartz app): ipython --pylab=qt Leave it alone for a bit. Try scrolling through history. Long delay, even in responding to Ctrl-C. Evidently key events are stacking up and not being processed. Now try: ipython %pylab qt I see the slowdown with this, also. The response delay seems to get worse with time. It renders the session unusable after only a few minutes. ipython %gui qt And I still see it, so this appears to be a problem in ipython's PyQt4 gui handling, not directly related to matplotlib. All on Mavericks, running ipython from Apple's terminal. Eric ------------------------------------------------------------------------------ _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
