2021-09-10

最新推荐文章于 2026-01-08 23:29:03 发布

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原文链接：https://stackoverflow.com/questions/8608587/finding-the-source-code-for-built-in-python-functions#:~:text=Finding%20the%20source%20code%20for%20built-in%20Python%20functions%3F,for%20instance%2C%20sorted%20%28%29%20is%20implemented%20in%20builtin_sorted.

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如何查找python中内置函数的源代码

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Since Python is open source you can read the source code.

To find out what file a particular module or function is implemented in you can usually print the __file__ attribute. Alternatively, you may use the inspect module, see the section Retrieving Source Code in the documentation of inspect.

For built-in classes and methods this is not so straightforward since inspect.getfile and inspect.getsource will return a type error stating that the object is built-in. However, many of the built-in types can be found in the Objects sub-directory of the Python source trunk. For example, see here for the implementation of the enumerate class or here for the implementation of the list type.