exceptions() occur when an expression cannot be executed correctly while the syntax is correct.

>>> x = 0
>>> y = 5/x #5 cannot be divided by 0

Traceback (most recent call last):
File "", line 1, in 
ZeroDivisionError: division by zero

>>> try:
... x=0
... y=5/x
... except:
... print("Error")
...

Error