Pyside / OSX (Mavericks) -- Very slow app startup
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Hi all,
Well, this seems to be essentially all I ever post about here. When I used to use PyQt for my app, only this code took 8.5 seconds:
import sys
from PyQt4 import Qt
a = Qt.QApplication(sys.argv)I switched to PySide and got a big speedup, down to only about 3 seconds.
However, after upgrading to Mavericks and using homebrew to reinstall PySide and Qt, this code takes 8 seconds!
import sys
from PySide.QtCore import *
from PySide.QtGui import *
app = QApplication(sys.argv)It's always the last line, so I believe there is a delayed import.
Is there any way to achieve any sort of speedup in application launch? 8 seconds it just too long to wait again and again, and it's especially frustrating when debugging.
PySide.version_info
(1, 2, 1, 'final', 0)
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Hi,
One speedup you can try is to avoid calling import *, import only what you use.
Hope jt helps
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Unfortunately, this also takes 8 seconds:
import sys
from PySide.QtGui import QApplication
app = QApplication(sys.argv)I have no leads on what else to try..
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Which version of Qt are you currently using ?
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print PySide.QtCore.version
4.8.5
Anything come to mind?
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First thing to do move to 4.8.6, it's the first version of the 4 series that officially supporting Mavericks
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Alright, I'll give it a try. I had quite a bit of trouble trying to install Qt/PySide once I moved to Mavericks. What ultimately worked was running:
brew install pyside
and after quite some time it was all built and installed. I guess for some reason that command ended up doing 4.8.5. I only ran it two weeks ago.
Any suggestions on the best path to getting 4.8.6 installed? I'm a bit new to the installation and building process.
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Since you are using brew, then you should look with the brew guys directly.
Otherwise, you can grab the latest Qt 4 installer from the download page
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I'd be happy to try installing somehow other than with brew.
I only resorted to using brew and building rather than just installing binaries because here:
http://qt-project.org/wiki/PySide_Binaries_MacOSX
The Qt link for for OSX links to 4.8.5 (and is broken!)
Perhaps I don't understand -- is the proper installation path to install Qt 4.8.6, then compile PySide on top of that? Or is there somewhere I can just get binaries for Qt 4.8.6 and PySide 1.2.1?
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The link has been update
You should contact the original author of this wiki entry to see if he can help you directly
