a = [1]
a.append(a)
print([*a])

IOError is OSError

def a(z):
    x = 0
    try:
        x += 1
        100/z
        x += 1
    except ZeroDivisionError:
        try:
            x += 1
        finally:
            x += 1
            return 10 * x
    finally:
        x += 1
        return 100 * x
a(0)

from math import log, exp
x = log(exp(7)) + exp(log(3))
print(x)

try:
    try:
        raise IndexError
    except:
        pass
    finally:
        print('1', end='')
finally:
    print('2')

256 >> 7 << 1 << 2 >> 3 >> 1

def g(*args):
    return sum([f() if callable(f) else f for f in args])
x = g(lambda: 1, lambda: 2, 3, 4)
print(x)

def f1(): 
    raise IndexError
def f2(): 
    return
def f3(): 
    raise SyntaxError
counters = []
for func in (f1, f2, f3):
    counter = 0
    try:
        try:
            func()
        except IndexError:
            counter += 1   
        except SyntaxError:
            counter += 1  
    finally:
        counter += 1
    counters.append(counter)
print(counters)

x = 1
try:
    1/0
except Exception as x: 
    print(x)
print(x)