in what way it was wrong

Question

def factorial(x):
if x == 1:
yield 1
else:
yield x * factorial(x-1)

print(list(factorial(5)))

i just replaced return woth yield
why iam not gettling list of factotias upto 5

Answer 1

Factorial isn't a function but a generator. x is an integer and factorial(x - 1) déclares à generator, that return nothing...

Ex of generator :
def count():
yield 1
gen = count() #returns nothing : non initialized
print(next(gen)) #outputs 1
...

Answer 2

So write :
yield x * next(factorial(x - 1))