typed_ast: typed_ast (abstract syntax tree parser) typed_ast: typed_ast: typed_ast is a Python 3 package that provides a Python 2.7 and typed_ast: Python 3 parser similar to the standard ast library. Unlike ast, the typed_ast: parsers in typed_ast include PEP 484 type comments and are independent typed_ast: of the version of Python under which they are run. The typed_ast typed_ast: parsers produce the standard Python AST (plus type comments), and are typed_ast: both fast and correct, as they are based on the CPython 2.7 and 3.6 typed_ast: parsers. typed_ast: typed_ast: