Thanks, Chris. That makes sense. The len() example is great! On Tue, May 1, 2018 at 10:37 PM, Chris Angelico <ros...@gmail.com> wrote:
> On Wed, May 2, 2018 at 12:22 PM, C W <tmrs...@gmail.com> wrote: > > It's interesting how mean() can be implemented, but median() will break > > other packages. > > > > So, the default way in numpy is to use functions, not methods? > > > > When I first learned Python, I was told to create an object and to play > > around, there are methods for that object. List has list methods, tuple > has > > tuple methods, etc. > > > > Now, the default way in numpy is to use function instead of methods? I'm > > confused. What happened to object-oriented programming? > > Even outside of numpy, a lot of Python uses functions, not methods. > One good reason for this is that a function can accept a wide variety > of data types as its argument; for instance, len() accepts many > things, not just lists. Some things are done with methods, others with > stand-alone functions. There are design choices each way. > > ChrisA > -- > https://mail.python.org/mailman/listinfo/python-list > -- https://mail.python.org/mailman/listinfo/python-list
