Hi Ronald,
It took me a while to follow up on this thread I started a few months ago
because I wanted to find a minimal test case that illustrates my problem. Now
I've got one. Apparently the PyQt spashscreen doesn't behave correctly when I
use the py2app "argv_emulation" option.
To save you from digging through your email for the previous posts, I'll
summarize my issue again:
- I use py2app to bundle my app, which is implemented with PyQt4 (qt-4.8.3,
pyqt-4.9.5).
- I want to show a QSplashScreen when my app starts up, and hide it when the
main window is shown.
- When I double-click my app bundle:
-- There is a brief delay
-- The splash screen appears
-- The main window does not appear.
-- At this point, I can summon the main window into existence by using
command-tab to switch away from the app and then back again.
- I get correct splash screen behavior if I launch the app from the command
line via MyBundle.app/Contents/MacOS/myapp
I noticed that the odd behavior happens when I use the "argv_emulation" option.
Here's a minimal example that shows the incorrect behavior on my machine. To
see correct behavior, comment out the 'argv_emulation' option in setup.py.
If necessary, I can probably use a workaround to avoid argv_emulation, but if
there is a quick fix for this, I'd love to know about it.
Thanks,
Stuart
# bash commands to run:
$ python setup.py py2app
$ open dist/splashtest.app # incorrect splash screen behavior
$ open dist/splashtest.app/Contents/MacOS/splashtest # Correct behavior
##############
### splashtest.py
import sys, time
from PyQt4.QtGui import QPixmap, QSplashScreen, QApplication, QMainWindow
app = QApplication([])
# Show a (blank) splash screen
splash = QSplashScreen( QPixmap(300, 200) )
splash.show()
app.processEvents()
time.sleep(1)
# Create & show the main window
window = QMainWindow()
window.show()
window.raise_()
# Close the splash screen
splash.finish(window)
sys.exit( app.exec_() )
##############
# setup.py
from setuptools import setup, find_packages
setup(
app=['splashtest.py'],
options={ 'py2app': { 'argv_emulation': True,
'includes':['PyQt4.QtCore','PyQt4.QtGui' ] } },
setup_requires=['py2app']
)
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