importlib-metadata DeprecationWarning

[adamchainz]

Seen on adamchainz/mariadb-dyncol#298

   File "/home/runner/work/mariadb-dyncol/mariadb-dyncol/.tox/py37/lib/python3.7/site-packages/_pytest/assertion/rewrite.py", line 170, in exec_module
    exec(co, module.__dict__)
  File "/home/runner/work/mariadb-dyncol/mariadb-dyncol/.tox/py37/lib/python3.7/site-packages/hypothesis/__init__.py", line 61, in <module>
    run()
  File "/home/runner/work/mariadb-dyncol/mariadb-dyncol/.tox/py37/lib/python3.7/site-packages/hypothesis/entry_points.py", line 61, in run
    for entry in get_entry_points():  # pragma: no cover
  File "/home/runner/work/mariadb-dyncol/mariadb-dyncol/.tox/py37/lib/python3.7/site-packages/hypothesis/entry_points.py", line 32, in get_entry_points
    yield from importlib_metadata.entry_points().get("hypothesis", [])
  File "/home/runner/work/mariadb-dyncol/mariadb-dyncol/.tox/py37/lib/python3.7/site-packages/importlib_metadata/__init__.py", line 312, in get
    flake8_bypass(self._warn)()
DeprecationWarning: SelectableGroups dict interface is deprecated. Use select.
ERROR: InvocationError for command /home/runner/work/mariadb-dyncol/mariadb-dyncol/.tox/py37/bin/python -W error::DeprecationWarning -W error::PendingDeprecationWarning -m pytest (exited with code 1)

[adamchainz]

changelog

This can be solved by depending on importlib-metadata 3.9.0+ on Python < 3.10 and using the select interface, OR by using backports.entry-points-selectable.

[Zac-HD]

We've written a fair bit of extra code to ensure that our entry-points logic doesn't add a hard dependency; so I think the best option is to use select if it's available in

hypothesis/hypothesis-python/src/hypothesis/entry_points.py

Lines 31 to 32 in 0e7f87d

	def get_entry_points():
	yield from importlib_metadata.entry_points().get("hypothesis", [])

and fall back to the existing logic on older versions. Thanks for the report 😄

[adamchainz]

Why not add a dependency on importlib-metadata? That’s what I’ve done in pytest-randomly to avoid this deprecation warning.