error_handling_demo.py

try: 
    f = open("asdsada")
except:
    print("The file does not exist!")

try: 
    f = open("asdsada")
except FileNotFoundError:
    print("The file does not exist!")
except Exception as e:
    print(e)
finally:
    print("This message!")

n = 100
if n == 0:
    raise Exception("n can't be 0!")
if type(n) is not int:
    raise Exception("n must be an int!")
print(1/n)

n = 0
assert( n != 0)
print(1/n) #assertion is hard error check