PyInstaller and QGIS 3.4

Question

Currently I am developping a standalone python app and I am now working on the packaging with PyInstaller.

Configuration :

• OS : Windows 10
• QGIS : 3.4.9
• PyInstaller : 3.5

Pyinstaller correctly finds many dependencies and manages to create an executable.

But when I run it, the output is :

  File "C:\PROGRA~1\QGIS3~1.4\apps\Python37\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 627, in exec_module
    exec(bytecode, module.__dict__)
  File "qgis\gui\__init__.py", line 27, in <module>
RuntimeError: qgis._gui cannot import type '����' from PyQt5.QtCore
[6752] Failed to execute script main

I found that the sip folder in QGIS 3.4\apps\Python37\ contains many files that might be useful, so I manually added the content of sip\PyQt5 in the PyInstaller package with other PyQt5 stuff and the new output is :

  File "C:\PROGRA~1\QGIS3~1.4\apps\Python37\lib\site-packages\PyInstaller\loader\pyimod03_importers.py", line 627, in exec_module
    exec(bytecode, module.__dict__)
  File "qgis\gui\__init__.py", line 27, in <module>
RuntimeError: the PyQt5.Qsci module failed to register with the sip module
[4092] Failed to execute script main

Any idea about a file or folder I forgot to package ? For PyInstaller I use a default .spec file.

Reviewing Working Windows Standalone .EXE From QGIS Python Script Using PyInstaller? with QGIS 2 didn't help

Answer 1

Found a workaround:

I installed QGIS 3.4 LTR and pyinstaller in a miniconda environment on Windows 10.

(Add conda-forge channel to install QGIS)

I had to add the platforms/ directory in the data section of pyinstaller .spec file (qt platform directory found in the conda environment Library/ folder) for Qt to work.