def increment(x):
    x += 10
    return x

value = 5
new_value = increment(value)
print(value + new_value)

class A:
    def __new__(cls):
        return 42
        
    def __init__(self):
        print("Init")

print(A())

data = {'a': [1, 2], 'b': [3, 4]}
data['c'] = data['a'] + data['b']
data['a'].append(5)
print(len(data['c']))

funcs = [lambda: i for i in range(3)]
print(funcs[0](), funcs[-1]())

class A: pass
class B(A): pass
class C(A): pass
class D(B, C): pass
print(D.mro()[1].__name__)

d = {1: "A", True: "B", 1.0: "C"}
print(len(d), d[1])

print(any([0, "", False]))

class Model:
    val = 1
    lst = [val for _ in range(3)]

print(Model.lst)

lst = [1, 2, 3]
lst[1:2] = [4, 5, 6]
print(lst)

s = {1, 2, 3}
s.update([3, 4, [5]])
print(len(s))

d = {'a': 1}
print(d.setdefault('a', 2), d.setdefault('b', 3))