I want to run a python script in Blender via the console, but I split the script into multiple files. The folder consists of two files, "main.py" and "poser.py". I call the main script like this:

blender -b --python E:\Development\Python\BlenderPoser\main.py

But I get the following error when trying to import the "poser.py" file:

Error: Python: Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "E:\Development\Python\BlenderPoser\main.py", line 5, in <module>
    from . import poser
ImportError: attempted relative import with no known parent package

What I get from this is that Blender only imports the main.py file, and ignores all of the rest. How can I tell Blender to also import the rest of the files?

  • $\begingroup$ If I'm not mistaking, you should write something like from poser import <module name, or class> $\endgroup$
    – L0Lock
    Sep 15, 2022 at 9:12
  • $\begingroup$ Does this help? Having trouble creating an Addon with multiple modules $\endgroup$
    – L0Lock
    Sep 15, 2022 at 9:19
  • $\begingroup$ Using "from poser import Poser" results in the message "ModuleNotFoundError: No module named 'poser'". And I do know how to create a modular plugin, but I would like to create a script without making it a full plugin. $\endgroup$ Sep 15, 2022 at 9:31

1 Answer 1


I solved it by adding the additional files into a separate folder and adding that folder to the system path:

# Add the folder to the system path, so it can be loaded by the script
main_dir = pathlib.Path(os.path.dirname(__file__)).resolve()
core_dir = os.path.join(main_dir, "core")

After this, I am able to import the poser.py file with import poser


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