#testmod.py
x = 0
def f1():
    x = 10
def f2():
    global x
    x += 1   
def f3():
    import testmod
    testmod.x += 1
def f4():
    import sys
    sys.modules["testmod"].x += 1

#runmod.py
import testmod as t
t.f1();t.f2();t.f3();t.f4()
print(t.x)

def maker(n):
    s = 0
    def g(x=n):
        nonlocal s
        s += x
        return s
    return lambda x: s + x + g()
f = maker(2)
print(f(3), f(3))

f = lambda x, f=(lambda x: x**2):  f(x)
print(f(5), f(5, f))

a = "Xmas"
b = a
a = "New Year"
print((a is b))

def maker(n, h=lambda: 3):
    return lambda f=h: f()**n, lambda f=h: n**f()
f, g = maker(2)
r = f(g) + g(f)
print(r)

funcs = [lambda x: x**i for i in range(2, 4)]
print(funcs[0](5))

def f():
    def g():
        nonlocal x
        x = 2
    g()
    print(x)
        
f()

def f():
    def g():
        global x
        x = 2
    g()
    print(x)
        
f()

def f(name="", value=0):
    import sys
    func_name = sys._getframe(0).f_code.co_name
    func = sys._getframe(1).f_locals[func_name]
    setattr(func, name, value)
    return sum(func.__dict__.values())

print(f("x", 1), f("y", 2), f())

a = b, c = [1, 2]
a[0] = 10
print(b, c)