PYTHON ADVANCED - 14: GENERATORS

 IN THIS TUTORIAL, YOU WILL LEARN ABOUT GENERATORS:

NOTE: TRY ALL METHODS WHICH ARE COMMENTED OUT

# def mygenerator():

#     yield 3

#     yield 2

#     yield 1

# g = mygenerator()

# for i in g:

#     print(i)

# print(sum(g))

# print(sorted(g))

# value = next(g)

# print(value)

# value = next(g)

# print(value)

# value = next(g)

# print(value)

# value = next(g)

# print(value)

# def countdown(num):

#     print("Starting")

#     while num > 0 :

#         yield num

#         num -=1

# cd = countdown(4)

# value = next(cd)        

# print(value)

# print(next(cd))

# print(next(cd))

# print(next(cd))

import sys

# def firstn(n):

#     nums = [1]

#     num = 0

#     while num < n:

#         nums.append(num)

#         num +=1

#     return  nums

# def firstn_generator(n):

#     num = 0

#     while num < n:

#         yield num

#         num += 1

# # print(sum(firstn(10)))

# # print(sum(firstn_generator(10)))  

# print(sys.getsizeof(firstn(10000)))

# print(sys.getsizeof(firstn_generator(100000)))  

# def fibonacci(limit):

#     # 0 1 1 2 3 5 8 13 ......

#     a, b = 0, 1

#     while a < limit:

#         yield a

#         a, b = b, a+b

# fib = fibonacci(30)

# for i in fib:

#     print(i)        

import sys

mygen = (i for i in range(10) if i%2 == 0)

# for i in mygen:

#     print(i)

# print(list(mygen))

print(sys.getsizeof(mygen))

mylist = [i for i in range(10) if i%2 == 0]

# print(mylist)

print(sys.getsizeof(mylist))