Use a python range.

Author: delucchi-cmu

tests/conftest.py

@@ -14,4 +14,5 @@ def python_version(request):
 
 @pytest.fixture
 def default_answers(python_version):
-    return {"python_versions": [python_version]}
+    highest_version_index = PYTHON_VERSIONS.index(python_version)
+    return {"python_versions": PYTHON_VERSIONS[0 : (highest_version_index + 1)]}