[PyQt] QDialog blocking on OS X with PyQt5.6

[Timothy W. Grove]

Is anyone aware of blocking issues with QDialog on OS X with PyQt 5.6? 
It's not an issue I've seen in Windows.

This appears to be happening in my application with QFileDialog, QDialog 
and QMessageBox. After clicking the OK button these dialogs close but my 
application is no longer responsive. In the case of the QFileDialog, 
testing shows that it doesn't return a filename. A solution I've been 
using is to subclass these and put 'qApp.processEvents()' inside the 
'hideEvent' method, but this doesn't seem ideal to me. Just wondering if 
anyone else has seen these problems or if the cause is something else 
entirely in my application.

Best regards,
Tim