Convert most of the collection code from py.path to pathlib

testing/test_collection.py

@@ -212,12 +212,12 @@ class TestCollectFS:
         bindir = "Scripts" if sys.platform.startswith("win") else "bin"
         # no bin/activate, not a virtualenv
         base_path = pytester.mkdir("venv")
-        assert _in_venv(py.path.local(base_path)) is False
+        assert _in_venv(base_path) is False
         # with bin/activate, totally a virtualenv
         bin_path = base_path.joinpath(bindir)
         bin_path.mkdir()
         bin_path.joinpath(fname).touch()
-        assert _in_venv(py.path.local(base_path)) is True
+        assert _in_venv(base_path) is True
 
     def test_custom_norecursedirs(self, pytester: Pytester) -> None:
         pytester.makeini(