Александр

>>> x = {1: 2, 3: 4, 4: 3, 2: 1, 0: 0}
>>> sorted_by_value = sorted(x.items(), key=lambda kv: kv[1])
>>> sorted_by_value
[(0, 0), (2, 1), (1, 2), (4, 3), (3, 4)]
>>> dict(sorted_by_value)
{0: 0, 2: 1, 1: 2, 4: 3, 3: 4}
>>>

vars = {
    "user1":{"a":1,"b":2},
    "user2":{"a":4,"b":1},
}
current_user = api.get_user_id()
vars[current_user]["a"] = 5

@webApp.route('/')
def root_page():
    return redirect(url_for('main_page'))
@webApp.route('/home')
def main_page() -> str:
   return 'Welcome'

a="1679"
print(sum([(x+1)*int(a[x])for x in range(len(a))]))

print(sum([i*int(v)for i,v in enumerate("1679",1)]))

while True:
    s = input("набери уже чтонибудь")
    print(s)

a = [1,2,3,4,5,6,7]
for i in range(len(a)-1,0,-1):
	b = a[i-1:i+1]
	b.reverse()
	print(b)