class A:
    def __init__(self, value): 
        self.value = value
    def __call__(self, other):
        return self.value ** other
x = A(2) 
print(x(3))

from functools import reduce
funcs = [str.title, lambda x: x*2]
print(reduce(lambda acc, f: f(acc), funcs, 'hello'))

class A:
    def __init__(self, x):
        self._x = x
    @property
    def x(self):
        return self._x
    
a = A(1)
print(A.x.fget(a), a.x)

a = {1, 2, 3}
b = {3, 2, 1}
print(a == b, a is b)

print(sorted([str(x) for x in range(1, 30, 5)]))

print(2 ^ 3 ^ 3 ^ 2 ^ 2 ^ 4 ^ 2 ^ 4 ^ 2)

a = 0
def func():
    global a
    for num in [2, 4, 8]:
        a += 1
        yield(num * 0.5)
        
array = []
for val in func():
    array.append(int(a == val))
print(sum(array))

a = 1; b = 2
print(eval('print(a + b, end=" ") or 0'))

class A:
    x = 1
    def __init__(self):
        self.y = 2

a = A()

class A:
    def __iter__(self):
        yield from range(10)
a = A()
print(5 in a, 20 in a)