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pythonpython-3.xlistbuilt-in

how to modify python's built in modules

I want to add functions to python's built in module. As a example, there is no find function in list. I want to add it. There is some other functions I want to add. Can somebody please tell me how can I do that? Is their any way I can do that?

Solution

  • Adding functions to the builtins module is simple:

    import builtins
builtins.find = my_find_function

    But the built in classes are usually immutable, so they cannot be changed.

    >>> list.hello = "hello"
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: can't set attributes of built-in/extension type 'list'