```python a = 3 global a print(a) b = 2 + 5 print(b) ``` This code generate syntax error, but gpython doesn't stop program ### Expected Result ```bash Hyeockz:bin hyeockjinkim$ python3 g.py File "g.py", line 2 global a SyntaxError: name 'a' is assigned to before global declaration ``` ### Actual Result ```bash 2019/09/09 00:08:36 name 'a' is assigned to before global declaration 3 7 ``` SyntaxError in python3 is Error, not warning. So I think it should be modified.