I spent longer than I'd care to admit think of a suitable 'question' heading for this topic, as my issue is somewhat hard to articulate.
Here is a quick summary of the situation:
- I'm writing a basic GUI with Python 3.4 and PySide
- I'm using QFileSystemWatcher to monitor a particular file
- When the file is changed, QFileSystemWatcher calls a method, which in turn calls a method within a PySide Class
- All of the above seems to be working perfectly, except the GUI-specific actions detailed in the PySide Class method aren't being executed (I'll explain in more detail below).
Example code:
#Establishing the PySide GUI Class
class GUI(QMainWindow, Ui_GUI):
def __init__(self, parent=None)
super(GUI, self).__init__(parent)
self.setupUi(self)
QtCore.QObject.connect(self.Button, QtCore.SIGNAL("clicked()"), self.Run)
def Run(self):
print("1")
self.treeWidget1.clear()
self.treeWidget2.clear()
print("2")
self.label1.setText("Text 1")
self.label2.setText("Text 2")
print("3")
for y in range(0, 5):
self.treeWidget1.resizeColumnsToContents()
print("Finished")
#Establish the file monitoring mechanism, *outside* the PySide class
def FileChanged():
Script = GUI()
Script.Run()
Paths = ['path/to/file']
Watch = QtCore.QFileSystemWatcher(Paths)
Watch.fileChanged.connect(FileChanged)
#Setting up the GUI
if __name__ == '__main__':
app = QApplication(sys.argv)
showGUI = GUI()
showGUI.show()
app.exec_()
As I mentioned above, the above code doesn't return any errors. When I change the file (listed in the path), FileChanged does indeed call the Run() method from the GUI class. However, it won't actually do any of the 'stuff', it will only execute the print commands in between the 'stuff'.
If I then click on the 'Button' in the GUI, it will execute Run() correctly, and properly execute all the 'stuff'.
My question: is there something I'm missing here? If it's calling the method correctly, and is able to execute the various 'print' commands, why is it not executing the actual 'stuff'?
Thanks!
EDIT 1: I've removed the -do stuff- tags and put in some example code. All the 'stuff' code relates to updating various PySide QLabels, QTreeWidgets, etc.
EDIT 2: I forget the () at the end of the treeWidget clear commands.