Later

Added the `herd` decorator to `later.task` - This decorator allows you to protect code from a thundering herd of coroutines. Only one call with the same arguments will be allowed through until the request is completed. In the future I will include some memorization decorators for caching results of coroutines.

Also included Support for cpython 3.11 and 3.12. Next release will drop support for 3.7

Also this is the first release using pyproject / flit

This new version of cancel is built to properly follow the asyncio cancellation contract. This version has been running at Meta for quite a while. The changes were initially discovered while preparing for the pycon.us talk https://www.youtube.com/watch?v=XW7yv6HuWTE

later.unittest.TestCase:

* TestTask: Fixed `__repr__` to used cached coro repr. Makes error messages more helpful for left over tasks.
* Ignored left over tasks that are done() and have the result() of None

- Misc packaging fixes - 4 - Thanks thatch
- Include more tests that were missed - 5 - Thanks thatch
- Fix some missed black formatting - Thanks cooperlees

Initial PyPI release of later