Question about running python in QGIS3

Question

I have 5 python scripts in the following folders :

• .\Signal_Slot_Example\main.py
• .\Signal_Slot_Example\ProgressDialog\init.py
• .\Signal_Slot_Example\ProgressDialog\Progress.py
• .\Signal_Slot_Example\SliderDialog\init.py
• .\Signal_Slot_Example\SliderDialog\Slider.py

Main.py when run calls the other 2 scripts and creates a simple slid that interacts with a progress bar and when I run it in Idle it all works fine.

When I run it in the QGIS python console I get :

Traceback (most recent call last):
  File "C:\OSGEO4~1\apps\Python37\lib\code.py", line 90, in runcode
    exec(code, self.locals)
  File "<input>", line 1, in <module>
  File "<string>", line 1, in <module>
  File "C:/OSGEO4~1/apps/qgis-ltr/./python\qgis\utils.py", line 672, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
ModuleNotFoundError: No module named 'SliderDialog'

Why won't it work in QGIS but runs fine in Idle ?

All the example code I have run in QGIS python console and in idle worked the same the only difference here is that I am calling classes from other .py scripts.

Answer 1

In your Signal_Slot_Example.main.py file, if you import local modules, try to add a dot before the name of the module :

import .SliderDialog