Use of Python 3.8 features

[LordAro]

Specifically, of typing.Protocol in a couple of places:

e3-testsuite/src/e3/testsuite/fragment.py

Lines 40 to 42 in 7cbb936

	class FragmentCallback(Protocol):
	def __call__(self, previous_values: Dict[str, Any], slot: int) -> None:
	...

e3-testsuite/src/e3/testsuite/report/display.py

Lines 78 to 80 in 7cbb936

	class SupportsLessThan(Protocol):
	def __lt__(self, other: SupportsLessThan) -> bool:
	...

There doesn't seem to be any specifically defined minimum Python version in this repo, but libadalang/langkit/e3-core do specify 3.7, so I guess this would inherit from that?

[pmderodat]

Hello,

Thank you for pointing this out. Unlike what’s advertised, e3-core currently supports only Python 3.8 and Python 3.9, so e3-testsuite has the same constraint: I’ll add this info to e3-testsuite’s README and to the doc for Libadalang/Langkit’s testsuites (this does not impact the rest of these projects).

[LordAro]

I thought that might be the case, thanks for confirming!

[pmderodat]

You are welcome! The READMEs are now up-to-date, and e3-testsuite’s testing uses Python 3.8 to detect future incompatibilities.