How can I extend a builtin class in python?
I would like to add a method to the str class.
I've done some searching but all I'm finding is older posts, I'm hoping someone knows of something newer.
Just subclass the type
>>> class X(str): ... def myMethod( self ): ... return int(self) ... >>> s=X("Hi Mom") >>> s.lower() 'hi mom' >>> s.myMethod() Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<stdin>", line 3, in myMethod ValueError: invalid literal for int() with base 10: 'Hi Mom' >>> z=X("271828") >>> z.lower() '271828' >>> z.myMethod() 271828