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)

def f():
    n = 0
    def g():
        nonlocal n
        n += 1
    def get():
        return n
    f.get = get
    return g
g1, g2 = f(), f()
g1(), g2(), g1()
print(f.get())

x = [*map(lambda x: x**2, [1, 2, 3])]
y = [x**2 for x in range(1, 4)]
print(x == y)

x = [[y**x for y in range(1, 3)] for x in range(1, 3)]
print(x)

sum(x[0] for x in enumerate(range(2), 5))

from itertools import zip_longest
x = [1, 2, 3]
y = ["a", "b"]
l = list(zip(x, y))
m = list(zip_longest(x, y))
print(l == m)

s = 0
try:
    s += 1/0
except ZeroDivisionError:
    s += 1
else: 
    s += 5   
finally:
    s += 10
print(s)

a, b = 1, 0
def divide1(a, b):
    try:
        return a / b
    except ZeroDivisionError:
        return None 
def divide2(a, b):
    try:
        return True, a / b
    except ZeroDivisionError:
        return False, None 
    
print(divide1(a, b), *divide2(a, b))