pyinstaller: No module named 'numpy.distutils'

I am trying to package my python application for other users that dont have python installed. I use pyinstaller.

My application has multiple dependencies which I e.g. import via import numpy as

So far I have tried:

pyinstaller --paths venv\Lib\site-packages --onefile Main.py

The packaging runs without errors. But when trying to open the .exe file I get:

(venv) PROJECT_DIR>dist\Main.exe

Traceback (most recent call last):
  File "Main.py", line 6, in <module>
    from LinearProgram import LinearProgram
  File "PyInstaller\loader\pyimod03_importers.py", line 476, in exec_module
  File "LinearProgram.py", line 3, in <module>
    import scipy.optimize
  File "PyInstaller\loader\pyimod03_importers.py", line 476, in exec_module
  File "scipy\optimize\__init__.py", line 401, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 476, in exec_module
  File "scipy\optimize\_minimize.py", line 27, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 476, in exec_module
  File "scipy\optimize\_trustregion_constr\__init__.py", line 4, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 476, in exec_module
  File "scipy\optimize\_trustregion_constr\minimize_trustregion_constr.py", line 5, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 476, in exec_module
  File "scipy\optimize\_constraints.py", line 8, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 476, in exec_module
  File "numpy\testing\__init__.py", line 12, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 476, in exec_module
  File "numpy\testing\_private\extbuild.py", line 11, in <module>
ModuleNotFoundError: No module named 'numpy.distutils'
[3812] Failed to execute script 'Main' due to unhandled exception!

I have verified that the application is working when running python Main.Py

I also tried installing the missing pakachges manually with:

pyinstaller --onefile --hidden-import numpy --hidden-import scipy --hidden-import matplotlib Main.py

This leads to the exact same error.

I also tried it with --hidden-import numpy.distutils which also didnt work.

Does anybody have suggestions on how to package all my dependencies?