import sys
def Factorial(n): # return factorial
result = 1
for i in range (1,n):
result = result * i
print "factorial is ",result
return result
print Factorial(10)
import sys
def Factorial(n): # Return factorial
result = 1
for i in range (1,n):
result = result * I
print "factorial is ",result
return result
python -m tabnanny yourfile.py