Python 3.10, the latest in-development version of Python, has been released in its first beta version. With the beta release, the feature set for Python 3.10 has been locked down, and intrepid Python developers are encouraged to test their code against the latest builds (although not in a production environment, of course).
There aren’t many truly new major features in Python 3.10, but of the few that we do have, one of them — structural pattern matching — may be the single most significant addition to the language syntax since async.
