Feature or enhancement

Proposal:

Profiling import time on a client project revealed ~30% of the time for dataclasses was spent creating the docstring, mostly because inspect.signature() is costly. In most executions, this time is wasted, as such automated docstrings are rarely referred to during normal execution.

It’s possible to make the docstring generation lazy by writing a descriptor class.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs

• gh-144764: Made dataclasses construct automatic docstrings lazily #144765