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FastAPI error: ImportError: attempting relative import with no known parent package

FastAPI error: ImportError: attempting relative import with no known parent package

David Y.

The ProblemJump To Solution

I’m trying to split my FastAPI application’s code into different files, but I keep getting this error when I try to import them into

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ImportError: attempted relative import with no known parent package

The import line at the top of looks like this:

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from . import schemas, models

My directory structure looks like this:

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├── ├── └──

The directory’s name is app, and I’ve also tried the following import statement:

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from app import schemas, models

This produces a different error:

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ModuleNotFoundError: No module named 'app'

How do I successfully import and into

The Solution

When importing Python files in the same directory, we should not need to use from. The following import statement will work in

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import schemas, models

If we later want to introduce additional organization to the project, such as placing and in a lib subdirectory, we will be able to import them as below:

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import lib.schemas, lib.models

For more about importing local Python files in different directory structures, please see this answer.

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