the thing I have noticed is that when I updated my UIs and covert them to .py modules for import ... I ALWAYS need to restart Maya. Even if I have closed all my QT_Dialogs/Widgets
Sent from my iPhone > On Jul 17, 2014, at 7:51 AM, Marcus Ottosson <[email protected]> wrote: > > Have you guys tested memory usage on widgets sticking around after getting > closed? I can't imagine it ever becoming a problem, even in long-running > sessions of Maya (e.g a whole day). The only issue I've had with the > persistence of variables in Maya is in debugging and making sure you're > actually using the latest of your modules as most of them would have been > reused rather than reloaded; and even if you reload all of them, you'll have > to do it in the order they are implicitly loaded which isn't always possible > if you're having cyclical imports. > > So, in general, I'd say there isn't any recommended way to clear Qt classes > or any classes for that matter from Maya's Python, or Python overall. The > recommended approach for Python in general is to either restart the > interpreter, which in the case of Maya is to restart Maya, or to handle each > deletion yourself, which again, I think is of infinitesimal importance. > > >> On 15 July 2014 21:52, md <[email protected]> wrote: >> Thanks Justin ... >> >> Prior to reading this , I thought it was something like this ... I have the >> following in my Class __init__ >> >> self.setAttribute(QtCore.Qt.WA_DeleteOnClose) >> >> >> >>> On Tuesday, July 15, 2014 4:00:15 PM UTC-4, Justin Israel wrote: >>> There isn't any formal kind of global "flush" for Qt. If you are leaking >>> memory then you would need to fix that. Since Maya is a persistent >>> environment for all of the tools you run, tools have to take care to clean >>> themselves up. >>> With Qt, even more so. Because if you create widgets with parent to the >>> main window, they don't get deleted unless you do it. An example is a >>> dialog window. When you make a dialog and parent it to Maya's main window, >>> and then close the dialog, you are most likely leaking it if you are just >>> creating a new one from scratch each time. >>> >>> For any widget you have widget.deleteLater() which will delete it once >>> control gets back to the event loop. >>> >>> If you are not keeping a global ref to your dialog to reshow each time, and >>> your dialog is being parented to Maya, then you can use >>> QtCore.Qt.WA_DeleteOnClose and set it with dialog.setAttribute() >>> This will tell the dialog to delete when you close it. All widgets in the >>> parent child chain will delete. >>> http://qt-project.org/doc/qt-4.8/qt.html#WidgetAttribute-enum >>> >>> This may not be exactly the problem you are having so you might need to >>> explain the unwanted behavior a bit more >>>> On 16/07/2014 4:22 AM, "md" <[email protected]> wrote: >>>> Is there a way to flushing all prior QT instances from memory when >>>> developing PySide/Qt scripts for Maya? >>>> >>>> I am constantly exiting Maya and reloading it when my forms don't seem to >>>> refresh properly. >>>> >>>> Thanks >>>> >>>> M >>>> -- >>>> You received this message because you are subscribed to the Google Groups >>>> "Python Programming for Autodesk Maya" group. >>>> To unsubscribe from this group and stop receiving emails from it, send an >>>> email to [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/python_inside_maya/ff0065a9-e32e-4cac-b163-d9103c9a1f0f%40googlegroups.com. >>>> For more options, visit https://groups.google.com/d/optout. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Python Programming for Autodesk Maya" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/python_inside_maya/9e20ea8d-4852-489f-a050-84c684f48654%40googlegroups.com. >> >> For more options, visit https://groups.google.com/d/optout. > > > > -- > Marcus Ottosson > [email protected] > -- > You received this message because you are subscribed to a topic in the Google > Groups "Python Programming for Autodesk Maya" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/python_inside_maya/sNqxa2yDt5s/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/python_inside_maya/CAFRtmOD1L7yH2E12zioO2iax0pU_MK9eecTBvVRA%2BCMBWJBezw%40mail.gmail.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Python Programming for Autodesk Maya" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/python_inside_maya/315E4F7F-F0DD-4130-B336-5DC3C35E7B1C%40mdonovan.com. For more options, visit https://groups.google.com/d/optout.
