Just bail out on all AttributeErrors

src/pytest_benchmark/utils.py

@@ -190,13 +190,13 @@ def clonefunc(f):
     """
 
     # first of all, we clone the code object
-    if hasattr(f, '__code__'):
+    try:
         co = f.__code__
         co2 = types.CodeType(co.co_argcount, co.co_nlocals, co.co_stacksize, co.co_flags, co.co_code,
                              co.co_consts, co.co_names, co.co_varnames, co.co_filename, co.co_name,
                              co.co_firstlineno, co.co_lnotab, co.co_freevars, co.co_cellvars)
         #
         # then, we clone the function itself, using the new co2
         return types.FunctionType(co2, f.__globals__, f.__name__, f.__defaults__, f.__closure__)
-    else:
+    except AttributeError:
         return f