Python Web-L08(internal-buildin func)

def a(x, y=1):

print("I am from function a")

a.name = "john"

a.age = 30

#a()

print(a.name)

#['__annotations__', '__builtins__', '__call__', '__class__', '__closure__', '__code__', '__defaults__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__get__', '__getattribute__', '__getstate__', '__globals__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__kwdefaults__', '__le__', '__lt__', '__module__', '__name__', '__ne__', '__new__', '__qualname__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'age', 'name']

print(dir(a))

#.__name__ -> keep original function as the original function will be replaced

print(a.__name__)

b = a

print(b.__name__) # .__name__ <- check function name

print(a.__defaults__)

print(a.__code__) #.__code__ <- check address in RAM

print(a.__code__,hex(id(a))) #.__code__ <- check address in RAM

print(a.__code__.co_varnames)

print(a.__class__) #.__class__ <- check datatype; e.g. function, int, list

# press ctrl+/ <- all comment

a = 1

print(a.__class__)

print(a.__add__(3)) # a + 1

print(a.__le__(2)) # a < 2