Comments for compat.wraps requirement

Author: WillAyd

pandas/compat/__init__.py

@@ -365,7 +365,9 @@ def callable(obj):
         return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
 
 
-if sys.version_info[0:2] < (3, 4):
+if sys.version_info[0] < 3:
+    # In PY2 functools.wraps doesn't provide metadata pytest needs to generate
+    # decorated tests using parametrization. See pytest GH issue #2782
     def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
               updated=functools.WRAPPER_UPDATES):
         def wrapper(f):