[疑问] _tuple 是哪里来的变量呢？？

[1989922yan]

>>> Point = namedtuple('Point', ['x', 'y'], verbose=True)
class Point(tuple):
'Point(x, y)'

__slots__ = ()

_fields = ('x', 'y')

def __new__(_cls, x, y):
'Create a new instance of Point(x, y)'
return _tuple.__new__(_cls, (x, y))

[rcmerci]

到处找找吧

[1989922yan]

@rcmerci

真没有，真搜过了

[arbipher]

看下namedtuple源代码试试？

[vmebeh]

这是 Point = namedtuple('Point', ['x', 'y'], verbose=True) 回显的

来自 Lib/collections.py 234行的 _class_template，在348行填好参数打印出来

[ruoyu0088]

_tuple is tuple, you can input following code to verify it:

from collections import namedtuple
Point = namedtuple("Point", "x, y", verbose=True)
print Point.__new__.func_globals["_tuple"] is tuple

[1989922yan]

@ruoyu0088

yep,

in the source code, where it write `from builtins import property as _property, tuple as _tuple`