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Which is the best way to use pyqgis?
It should ideally be handled in a slot that is connected to lastWindowClosed () signal of the application. Consulting the PyQGis documentation, you’ll find that there are four main ways to utilize the PyQGis API: outside QGIS (in the Python shell or creating an applications with PyQt4 and not Tkinter (why import Tkinter twice ?)
Do you need PyQt4, Tkinter, or QGIS?
You don’t need here PyQt4, Tkinter or qgis.gui: you can create an application. You need here PyQt4 (and not Tkinter) and qgis.gui. I would like to program a standalone application using PyQGIS the way I can already program standalone applications using ArcPy.
What happens when I run a standalone pyqgis script?
When I run the script in the console editor, it does it all correctly. When I run it as a standalone, it creates a window, then immediately destroys it, while throwing no errors. So the intepreter understands everything I’m asking the script to do – it just won’t do it.
What’s the difference between QGIS and standalone applications?
This leads me to believe that the difference is that the QGIS application correctly sets external environment variables, but those variables are not set properly when I run it as a standalone script.
Why does pyqgis not work with ArcPy or QGIS?
Certainly ArcPy doesn’t require people to mess around with the computer’s environmental settings, so I’m having difficulty understanding why PyQGIS does. It seems to me people will simply give up rather than teach themselves Windows Batch Scripting Language. Now, I notice that when I run a script in QGIS’s console editor, it works.
Can you use ArcPy outside of QGIS on Windows?
Because you use the Python version of ArcGIS, in other cases, the same is true, look using arcpy outside arcmap or Configure PyScripter to use with QGIS (and still use arcpy) on Windows, for example. You don’t need here PyQt4, Tkinter or qgis.gui: you can create an application. You need here PyQt4 (and not Tkinter) and qgis.gui.