def f(x: int) -> float:
    pass
a = f.__annotations__
x = a["x"] is int
y = a["return"] is float
print(x, y)

def f(): return 2, 1
b, a = f()
print(a, b)

def f(s='', l=[]):
    s += '1'
    l.append(1)
    return s, l
f()
s, l = f()
print(len(s), len(l))

s = ['3b', '1c', '2a']
x = sorted(s, key=lambda x: x[-1])
print(*x)

x = 1
a = lambda y: x + y
x = 2
b = lambda y: x + y
print(a(3), b(3))

x = 1
a = lambda y, x=x: x + y
x = 2
b = lambda y, x=x: x + y
print(a(3), b(3))

g = [lambda x: x+n for n in range(2)]
for f in g:
    print(f(0), end='')

g = [lambda x, n=n: x+n for n in range(2)]
for f in g:
    print(f(0), end='')

from functools import partial
def spam(a, b):
    print(a, b)
s = partial(spam, b=1)
s(2)