The Trio project's goal is to produce a production-quality, permissively
licensed, async/await-native I/O library for Python. Like all async libraries,
its main purpose is to help you write programs that do multiple things at the
same time with parallelized I/O. A web spider that wants to fetch lots of
pages in parallel, a web server that needs to juggle lots of downloads and
websocket connections at the same time, a process supervisor monitoring
multiple subprocesses... that sort of thing. Compared to other libraries, Trio
attempts to distinguish itself with an obsessive focus on usability and
correctness. Concurrency is complicated; we try to make it easy to get things
right.