keys = ["a", "b", "c", "d"]
values = [1, 2, 3, 4]
dict_ = {key: value for (key, value) in zip(keys, values)}
dict_ = {key:value for (key, value) in dict_.items() if value % 2 == 1}
sum([value for value in dict_.values()], 5)

print(bool("0"), bool([0, None]), bool((None,)))

b, c, a = c, a, b = 1, 2, 3
print(a, b, c)

a, b = 5, 15
print(a == 5 == b / 3 == 4 + 1)

len(str(1 + 1) * int('1' + '1'))

import time
my_time = time.strptime("Mon Feb 22 10:55:00 2021")
my_time = time.strftime("%d.%m.%Y", my_time)
print(my_time)

import time
time.asctime((2021, 2, 23, 12, 0, 0, 1, 0, 0))

def f(**x): 
    return sum(x.values())
s = f(a=1, b=2) + f(x=2, y=1, z=0)
print(s)

x = (i**2 for i in range(1, 100) if not i % 3)
y = (i for i in x if not i % 5)
print(next(y))

import hashlib
m = hashlib.sha256()
m.update(b"hello")
print(m.digest_size, len(m.hexdigest()))