Loguru issues with pyinstaller

[Rafficer]

I can't get Loguru to work with pyinstaller. Maybe someone can help me out.

Running the python file directly works perfectly fine and packaging with pyinstaller also works, but running the pyinstaller package then throws an Error.

Python Version: 3.7.3
Loguru Version: 0.3.1
Pyinstaller Version: 3.5
OS: Fedora 30

Steps to reproduce:

1. Write a simple script test.py with the following contents:

from loguru import logger
print("test")
logger.debug("Testlog")

2. Pack it with pyinstaller:

pyinstaller test.py

3. Run the pyinstaller package

./dist/test/test

I'm then met with the following error:

Traceback (most recent call last):
  File "test.py", line 1, in <module>
  File "/home/user/Documents/pyinstaller-test/.venv/lib/python3.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 627, in exec_module
    exec(bytecode, module.__dict__)
  File "loguru/__init__.py", line 10, in <module>
  File "/home/user/Documents/pyinstaller-test/.venv/lib/python3.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 627, in exec_module
    exec(bytecode, module.__dict__)
  File "loguru/_logger.py", line 18, in <module>
  File "/home/user/Documents/pyinstaller-test/.venv/lib/python3.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 627, in exec_module
    exec(bytecode, module.__dict__)
  File "loguru/_better_exceptions.py", line 2, in <module>
ModuleNotFoundError: No module named 'distutils'
[105097] Failed to execute script test

When I use pyinstaller with the --hidden-import=distutils flag, it doesn't work either but just gives me this error instead:

Traceback (most recent call last):
  File "test.py", line 1, in <module>
  File "/home/user/Documents/pyinstaller-test/.venv/lib/python3.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 627, in exec_module
    exec(bytecode, module.__dict__)
  File "loguru/__init__.py", line 10, in <module>
  File "/home/user/Documents/pyinstaller-test/.venv/lib/python3.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 627, in exec_module
    exec(bytecode, module.__dict__)
  File "loguru/_logger.py", line 18, in <module>
  File "/home/user/Documents/pyinstaller-test/.venv/lib/python3.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 627, in exec_module
    exec(bytecode, module.__dict__)
  File "loguru/_better_exceptions.py", line 2, in <module>
  File "/home/user/Documents/pyinstaller-test/.venv/lib/python3.7/site-packages/PyInstaller/loader/pyimod03_importers.py", line 627, in exec_module
    exec(bytecode, module.__dict__)
  File "distutils/__init__.py", line 44, in <module>
ImportError: cannot import name 'dist' from 'distutils' (/home/user/Documents/pyinstaller-test/dist/test/distutils/__init__.pyc)
[104459] Failed to execute script test

I didn't yet come further than this...

Would greatly appreciate any help!

Thank you!

[Rafficer]

Turns out it was no issue with loguru. It was an issue with pyinstaller and/or virtualenv.

This fixed it: pyinstaller/pyinstaller#4064 (comment)

[Delgan]

Thanks for the information, @Rafficer!

As distutils is not fundamentally required for loguru to work correctly, I will probably add a try / except block around the import distutils, just in case. 🙂