Failing to execute Example: No module named 'encodings'

[Murmele]

I tried to use pythonqt and to execute one of the examples. I used a preinstalled python 3.8 version without debug symbols or anything else. In Debug mode I'm getting a linker error that a python3.8_d.dll library is missing (#4 Ensure PYTHONQT_USE_RELEASE_PYTHON_FALLBACK works as expected ). In Release mode I can build the library and start the application, but I get the error below. I compared the sys paths between here and when executing python in a console and there I see that the path to Python38\Lib\site-packages is missing. I don't know if it is the problem.

Qt: 5.12.10, Mingw 7.3
Windows 10
Python 3.8
PythonQt commit: 9ea0fcf (latest commit on master)

Python path configuration:
PYTHONHOME = 'C:\Qt\Tools\mingw730_64\bin..\opt'
PYTHONPATH = 'AppData\Local\Programs\Python\Python38'
program name = 'PythonQtTest'
isolated = 0
environment = 1
user site = 1
import site = 0
sys._base_executable = 'build-PythonQt-Desktop_Qt_5_12_10_MinGW_64_bit-Release\lib\PyScriptingConsole.exe'
sys.base_prefix = 'C:\Qt\Tools\mingw730_64\bin\..\opt'
sys.base_exec_prefix = 'C:\Qt\Tools\mingw730_64\bin\..\opt'
sys.executable = 'build-PythonQt-Desktop_Qt_5_12_10_MinGW_64_bit-Release\lib\PyScriptingConsole.exe'
sys.prefix = 'C:\Qt\Tools\mingw730_64\bin\..\opt'
sys.exec_prefix = 'C:\Qt\Tools\mingw730_64\bin\..\opt'
sys.path = [
'AppData\Local\Programs\Python\Python38',
'AppData\Local\Programs\Python\Python38\python38.zip',
'C:\Qt\Tools\mingw730_64\bin\..\opt\DLLs',
'C:\Qt\Tools\mingw730_64\bin\..\opt\lib',
build-PythonQt-Desktop_Qt_5_12_10_MinGW_64_bit-Release\lib',
]
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00000114 (most recent call first):

Fatal Python error:
failed to get the Python codec of the filesystem encoding

[usiems]

I'm only guessing here, but perhaps PYTHONPATH needs to include the Lib directory in Python38?

[Murmele]

Thank you.
I set PYTHONPATH to AppData\Local\Programs\Python\Python38 but it must be set to AppData\Local\Programs\Python\Python38\Lib

[GeoGroup]

Have you fix this problem? I have the same problem in runing PythonQtTest