#

def test_fresh(module):
    rv = module.func()
    print("OK %s" % module.__name__)

if __name__ == '__main__':
    import sys
    from dummy import foo
    #import dummy                         # A
    #from dummy import bar                # B
    sys.modules['dummy'] = object()       # C
    sys.modules['dummy.bar'] = object()   # D
    # fails
    test_fresh(foo)