__code __本身就是一個物件，有15個屬性，列舉幾個常用的屬性

def make_averager():
   series = []
   zz = 88
   def averager(new_valuer=11,*,g=22,c=99):
        print(zz)
        series.append(new_valuer)
        total = sum(series)
        return total/len(series)
    return averager

av = make_averager()
print(av.__code__)
<code object averager at 0x000002635A6A9030, file "D:/pythoncodesaveplace/TicTacToe/1.py", line 18>
print(av.__code__.co_argcount)
1   #指的是POSITIONAL_OR_KEYWORD
print(av.__code__.co_kwonlyargcount)
2  #指的是g,c引數
print(av.__code__.co_freevars)
('series','zz')
print(av.__code__.co_name)
averager
print(av.__code__.co_names)
('append', 'sum', 'len')
print(av.__code__.co_nlocals)
3  #指的是('new_valuer', 'g', 'total')這幾個變數
print(av.__code__.co_filename)
D:/pythoncodesaveplace/TicTacToe/1.py
print(av.__code__.co_varnames)
('new_valuer', 'g', 'total')

__closure __是元組，存放自由變數物件

av(10)
av(11)
print(av.__closure__)
(<cell at 0x000001A30D936618: list object at 0x000001A30D9EA548>,<cell at 0x000001A30D936648: int object at 0x00000000616071A0>)
print(av.__closure__[0])
<cell at 0x000001A30D936618: list object at 0x000001A30D9EA548>
print(av.__closure__[0].cell_contents)
[10,11]
print(av.__closure__[1])
<cell at 0x000001A30D936648: int object at 0x00000000616071A0>
print(av.__closure__[1].cell_contents)
88

defaults __ 指的是POSITIONAL_OR_KEYWORD引數的預設值

print(av.__defaults __)
(11,)

__kwdefaults __指的是KEYWORD_ONLY僅限關鍵字引數的預設值

print(av.__kwdefaults __)
{'g': 22,c=99}

__qualname __

print(av.___qualname_ __)
make_averager.<locals>.averager

__name __

print(av.___name_ __)
averager

參考
特殊屬性 官方