Exception

Question

y=[int(i) for i in input().split()]
print(y)
def factorial(x):
if x==0 or x==1:
return 1
else:
return x*factorial(x-1)
def coef_binom(n,k):
if k >n:
print("Error:k>n")
else:
return factorial(n)/(factorial(k)*factorial(n-k))
print(coef_binom(y[0],y[1]))
Hi, I want to use an exception if k >n. How I do modify this code?

Answer 1

Thanks

Answer 2

For example:
raise ValueError
(or whatever Error you want to use.)
Here's a list to choose from (and you can also make your own).
https://docs.python.org/3/library/exceptions.html