DLL load failed when importing PySide2, only while debugging

capitan Published at Dev

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capitan

Im facing a strange issue. I have downloaded and installed the Qt for Python library (PySide2) in the virtual environment of my project in PyCharm. I have created a dummy GUI using the Qt Designer and Im loading (.ui file) and displaying the GUI through my python code. Whenever I run the code, I can see the GUI without errors. However, whenever I debug the code, I get an error:

File "...\gui_pyside2.py", line 5, in

from PySide2.QtWidgets import QApplication, QLabel, QLineEdit

ImportError: DLL load failed: The specified procedure could not be found.

Pydev crashes on this line:

#execute the script (note: it's important to compile first to have the filename set in debug mode)
exec(compile(contents+"\n", file, 'exec'), glob, loc)

Im pretty lost on what could be the cause. It seems like pydev is interfering with the imports? I have tried using import statements instead of from import but the problem persists. Any ideas?

Versions installed:

PyCharm Community 2018.1.4
pydev debugger (build 181.5087.37)
Python 3.6.6 (v3.6.6:4cf1f54eb7, Jun 27 2018, 03:37:03) [MSC v.1900 64 bit (AMD64)]
PySide2-5.11.1a1.dev1530373667-5.11.1.dist (technical preview, python binding to Qt 5.11)

capitan

Answering to my own question:

Turns out there's a compatibility setting in Pycharm for Pyside:

Set it to PySide and debugger runs.

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edited at2020-10-30

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