How to Uninstall FastAPI in Python

FastAPI is a modern Python framework for building APIs. Sometimes, you may need to uninstall it. This guide will help you remove FastAPI cleanly.

Why Uninstall FastAPI?

You might need to uninstall FastAPI for several reasons. Maybe you're switching to another framework like Flask or Django. Or perhaps you're cleaning up your Python environment.

Check If FastAPI Is Installed

First, verify if FastAPI is installed in your Python environment. Use the pip show command.

pip show fastapi

If FastAPI is installed, this command will display its details. If not, it will show nothing.

Uninstall FastAPI Using Pip

The easiest way to uninstall FastAPI is with pip uninstall. Run this command in your terminal.

pip uninstall fastapi

Confirm the uninstallation when prompted. FastAPI will be removed from your environment.

Remove FastAPI Dependencies

FastAPI has dependencies like pydantic and starlette. You may want to remove these too.

pip uninstall pydantic starlette

This step is optional. Only do it if you no longer need these packages.

Verify Uninstallation

After uninstalling, verify FastAPI is gone. Use the pip show command again.

pip show fastapi

If FastAPI is uninstalled, this command will return no output.

Clean Up Virtual Environment

If you used a virtual environment, you can delete it entirely. This ensures a clean slate.

rm -rf venv

Replace venv with your virtual environment name.

Reinstall FastAPI If Needed

If you change your mind, reinstalling FastAPI is easy. Use the pip install command.

pip install fastapi

This will install the latest version of FastAPI and its dependencies.

Conclusion

Uninstalling FastAPI is simple with pip uninstall. You can also remove its dependencies if needed. For other frameworks, check guides like uninstalling Holoviews.

Always verify the uninstallation to ensure a clean environment. Happy coding!