This PEP proposes adding a new built-in variable, TYPE_CHECKING, to improve the experience of writing Python code with type annotations. It is evaluated as True when the code is being analyzed by a static type checker, and as False during normal runtime...

This PEP proposes a new platform tag series pyemscripten for binary Python package distributions for the Pyodide Python runtime.

As PEP 654 ExceptionGroup has come into widespread use across the Python community, some common but awkward patterns have emerged. We therefore propose adding two new methods to exception objects: