PYTHON ADVANCED - 07: ITERTOOLS

 HERE, WE WILL LEARN ABOUT ITERTOOLS:

NOTE: TRY ALL METHODS/CODES

#itertools : product, permutations, combinations, accumulate, groupby, and infinite iterators

# from itertools import product

# a = [1,2]

# b =[3]

# c = [5,6]

# prod = product(a,c)

# # prod = product(a,b, repeat=2)

# print(list(prod))

# from itertools import permutations

# a = [1,2,3]

# perm = permutations(a)

# print(list(perm))

# from itertools import combinations, combinations_with_replacement

# a = [1,2,3]

# comb = combinations(a, 2)

# print(list(comb))

# combwr = combinations_with_replacement(a, 2)

# print(list(combwr))

# from itertools import accumulate

# import operator

# a = [1,2,5,3,4]

# # acc = accumulate(a)

# # acc = accumulate(a, func = operator.mul)

# acc = accumulate(a, func = max)

# print(a)

# print(list(acc))

# from itertools import groupby

# def smaller_than_3(x):

#     return x<3

# a = [1,2,3,4]

# groupobj = groupby(a, key=smaller_than_3)

# for key,value in groupobj:

#     print(key, list(value))

from itertools import count, cycle, repeat

# for i in count(10):

#     print(i)

#     if i ==15:

#         break

# a = [1,2,3]

# for i in cycle(a):

#     print(i)

a = [1,2,3]

for i in repeat(1, 4):

    print(i)