```
here is my code:
def is_prime(x):
print x
if x <= 1:
return False
elif x == 2:
return True
else:
for n in range (2, x):
if (x % n) == 0:
return False
else:
return True
```

I get error:

Oops, try again.

Your function fails on is_prime(9). It returns True when it should return False.

How to fix it!??