在Python中，'<函数在...>'意思？ [英] In Python, what does '<function at ...>' mean?

问题描述

在> 的函数<是什么意思？例如：



What does <function at 'somewhere'> mean? Example:

>>> def main():
...     pass
...
>>> main
<function main at 0x7f95cf42f320>

也许可以通过 0x7f95cf42f320以某种方式访问​​它 ？

And maybe there is a way to somehow access it using 0x7f95cf42f320?

推荐答案

您正在查看函数对象的默认表示形式。它提供了一个名称和一个唯一的ID，它在CPython 发生中是一个内存地址。

You are looking at the default representation of a function object. It provides you with a name and a unique id, which in CPython happens to be a memory address.

您无法使用地址访问它;内存地址仅用于帮助您区分函数对象。

You cannot access it using the address; the memory address is only used to help you distinguish between function objects.

换句话说，如果您拥有最初命名的两个函数对象 main ，您仍然可以看到它们不同：

In other words, if you have two function objects which were originally named main, you can still see that they are different:

>>> def main(): pass
... 
>>> foo = main
>>> def main(): pass
... 
>>> foo is main
False
>>> foo
<function main at 0x1004ca500>
>>> main
<function main at 0x1005778c0>

这篇关于在Python中，'<函数在...>'意思？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！