never consider a fixture function for test function collection

testing/python/fixture.py

@@ -1641,6 +1641,20 @@ class TestFixtureMarker:
         reprec = testdir.inline_run("-v")
         reprec.assertoutcome(passed=6)
 
+    def test_fixture_marked_function_not_collected_as_test(self, testdir):
+        testdir.makepyfile("""
+            import pytest
+            @pytest.fixture
+            def test_app():
+                return 1
+
+            def test_something(test_app):
+                assert test_app == 1
+        """)
+        reprec = testdir.inline_run()
+        reprec.assertoutcome(passed=1)
+
+
 class TestRequestScopeAccess:
     pytestmark = pytest.mark.parametrize(("scope", "ok", "error"),[
         ["session", "", "fspath class function module"],

testing/test_assertion.py

@@ -101,7 +101,7 @@ class TestAssert_reprcompare:
 
     def test_frozenzet(self):
         expl = callequal(frozenset([0, 1]), set([0, 2]))
-        print expl
+        print (expl)
         assert len(expl) > 1
 
     def test_list_tuples(self):