AttributeError                            Traceback (most recent call last)
<ipython-input-1-341954e1e78e> in <cell line: 11>()
      9     return temp_tuple
     10 
---> 11 mistake_func()

<ipython-input-1-341954e1e78e> in mistake_func()
      5 
      6     for a in temp_list:
----> 7         temp_tuple.add(a)
      8 
      9     return temp_tuple

AttributeError: 'int' object has no attribute 'add'