• Strange Error

Question related to mission Days Between

 

I see very strange thing:

Traceback (most recent call last):, File "/opt/checkio/runners/py32.py", line 463, in , File "/opt/checkio/runners/py32.py", line 285, in dorun, File "/opt/checkio/runners/py32.py", line 275, in configenv, File "", line 3, return f(tuple(data[0]) tuple(data[1])), ^,SyntaxError: invalid syntax,