Error when importing QtCore with QGIS 3.22 (LTR)

[amr66]

I get an error using VSCode with your approach on new QGIS LTR 3.22:

Exception has occurred: ImportError
DLL load failed while importing QtCore: Das angegebene Modul wurde nicht gefunden.
  File "[E:\am\dev\gisstick\gisstick_x64\VSCode\test_workspace\pyqgis-standalone-main\qtcore_test.py]()", line 1, in <module>
    from PyQt5.QtCore import QSettings

I only changed your launch.json to use the ${file} variable. The error occurs also with other IDE's, like PyScripter, so may be this is an OSGeo4W problem?

[MarByteBeep]

If it also happens with other IDE's perhaps it's a problem with that version. Could you try installing an older version? I'm running 3.16.16. If that version does work, please consider raising an issue with the QGIS dev team.

[amr66]

Yes, thank you very much. I'm preparing a portable install of QGIS/Python for a USB memory stick, but I stuck with the PyQt5-Module. Does it work for you to import PyQt5.QtCore? Like this: from PyQt5.QtCore import QSettings. That would help me a lot.
--- added:
I found out that using from qgis.PyQt.QtCore import QSettings works. So I have at least a workaround.

[kannes]

Importing the Qt stuff via qgis.PyQt.* is the recommended way anyways so I think this can be closed.

[amr66]

I agree, but a last little thing I found out: Since Python 3.8 many packages for windows cant rely on the path variable anymore but should do this in their __init__.py instead:

    import os
    for p in os.getenv("PATH").split(";"):
    if os.path.exists(p):
        os.add_dll_directory(p)

If an IDE supports to run a little startup script for the python console, then this script can be run from there.

[kannes]

Hm, first time I hear about such issue. Is there more info available somewhere?

[amr66]

I think this comes near: https://stackoverflow.com/questions/71645822/dll-not-found-after-switching-from-python-3-7-6-to-python-3-10-3
Also I discussed this with the maker of PyScripter: pyscripter/pyscripter#1169