Fix Python – Why does Python code use len() function instead of a length method?

I know that python has a len() function that is used to determine the size of a string, but I was wondering why it’s not a method of the string object.
Update
Ok, I realized I was embarrassingly mistaken. __len__() is actually a method of a string object. It just seems weird to see object oriented code in Python using the len function on string ob….

Fix Python – Understanding the difference between __getattr__ and __getattribute__

I am trying to understand the difference between __getattr__ and __getattribute__, however, I am failing at it.
The answer to the Stack Overflow question Difference between __getattr__ vs __getattribute__ says:

__getattribute__ is invoked before looking at the actual attributes on
the object, and so can be tricky to
implement correctly. You c….

Fix Python – Calling parent class __init__ with multiple inheritance, what’s the right way?

Say I have a multiple inheritance scenario:
class A(object):
# code for A here

class B(object):
# code for B here

class C(A, B):
def __init__(self):
# What’s the right code to write here to ensure
# A.__init__ and B.__init__ get called?

There’s two typical approaches to writing C’s __init__:

(old-style) ParentClass….

Fix Python – When should I be using classes in Python?

I have been programming in python for about two years; mostly data stuff (pandas, mpl, numpy), but also automation scripts and small web apps. I’m trying to become a better programmer and increase my python knowledge and one of the things that bothers me is that I have never used a class (outside of copying random flask code for small web apps). ….