♻️ Add support for pip install "fastapi[standard]" including the standard dependencies, the CLI, Uvicorn, etc. and make fastapi not include the optional standard dependencies. fastapi and fastapi-slim are now the same.

This also adds support for calling it with:

python -m fastapi

And if someone doesn't install fastapi[standard] and tries to call the fastapi command, it will show them an error telling them to install fastapi[standard].

Summary

Install with:

pip install "fastapi[standard]"

This also upgrades fastapi-cli[standard] >=0.0.5.

Technical Details

Before this, fastapi would include the standard dependencies, with Uvicorn and the fastapi-cli, etc.

And fastapi-slim would not include those standard dependencies.

Now fastapi doesn't include those standard dependencies unless you install with pip install "fastapi[standard]".

Before, you would install pip install fastapi, now you should include the standard optional dependencies (unless you want to exclude one of those): pip install "fastapi[standard]".

This change is because having the standard optional dependencies installed by default was being inconvenient to several users, and having to install instead fastapi-slim was not being a feasible solution.

Discussed here: #11522 and here: #11525