Lambda  (Filter , Map , Reduce)

Recursion factorial

Functions

Factorial expresion

array addition ..

import numpy   
or
from numpy import *

nums= 

it= [3,5,6,4,7,8,6,4]iter(nums)

for i in nums:

     print(it.__next__())        # or we can use   print(next(it))

multi thread

filehandling

exception handeling