[Python-ideas] Re: Making TYPE_CHECKING builtin.

That's a mypy-specific hack, not something that's guaranteed by a PEP -- but it works great with mypy!

On Mon, Jan 18, 2021 at 4:40 PM Brandt Bucher brandtbucher@gmail.com wrote:

Doesn't explicitly setting it yourself still work?

TYPE_CHECKING = False

if TYPE_CHECKING:
    import xxx  # modules used only in type hints.

This seems to work for mypy, at least. Even just doing `if False:` works correctly (and is arguably the most efficient at runtime). _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-leave@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/P5W5ET... Code of Conduct: http://python.org/psf/codeofconduct/