workers INTEGER Number of worker processes. reload-delay FLOAT Delay between previous and next check ifĪpplication needs to be. Option has no effect unless watchfiles is reload-exclude TEXT Set glob patterns to exclude while watchingįor files. Includes '*.py' by default theseĭefaults can be overridden with `-reload-Įxclude`. reload-include TEXT Set glob patterns to include while watchingįor files. reload-dir PATH Set reload directories explicitly, instead fd INTEGER Bind to socket from this file descriptor. PyYAML will be installed to allow you to provide a.python-dotenv will be installed should you want to use the -env-file option.windows users will have colorama installed for the colored logs.the -reload flag in development mode will use watchfiles.the websocket protocol will be handled by websockets (should you want to use wsproto you'd need to install it manually) if possible.

Read more about comparison with h11 here.the http protocol will be handled by httptools if possible.The built-in asyncio event loop serves as an easy-to-read reference implementation and is there for easy debugging as it's pure-python based.uvloop is a fast, drop-in replacement of the built-in asyncio event loop.

In this context, 'Cython-based' means the following: This will install uvicorn with 'Cython-based' dependencies (where possible) and other 'optional extras'.