@Marvin I am trying to import a relative module inside of a function that is a flow but keep getting

ModuleNotFoundError

. I know the

PYTHONPATH

is correct because I am importing other relative modules outside of the function without error. What can I do?

To address the

ModuleNotFoundError

, start from ensuring that your project's directory structure and import statements are correctly set up. Here are some steps you can take: 1. Verify Project Structure: Ensure that the directory containing the module you're trying to import has an

__init__.py

file. This file can be empty but it signals to Python that this directory should be treated as a package. 2. Relative Imports: If you are doing a relative import, ensure that it starts with

.

if the module is in the same directory, or

..

if it's in the parent directory, etc. For example:

from .mymodule import myfunction

. 3. Python Path: The

PYTHONPATH

should include the root directory of your project to allow for proper resolving of modules. Since you've mentioned that

PYTHONPATH

is correct and you're able to import other modules, the problem might not be here. 4. Dynamic Imports: If you are dynamically importing modules using functions like

importlib.import_module

, ensure that the module paths are specified correctly. 5. Delayed Imports: Since you are facing the issue inside a function that is a flow, it might be a case of delayed execution. The Prefect runtime may not have the same

PYTHONPATH

as your external environment. 6. Dependency Management: If you're using Prefect with Docker or a similar containerized environment, verify that all necessary packages are installed inside the container. 7. Flow Configuration: If the flow configuration is defined in such a way that it does not have access to the necessary module path at runtime, you may need to adjust it. As the error is occurring only inside a flow function, it would be a good idea to re-examine how the flow is defined and where the import is situated within the flow. If you need assistance with error messages or any specific Prefect configurations, feel free to ask for additional help.