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Python Conditional Check

Anthony Costanza
Anthony Costanza
2,123 Points

Huh? Dunder who?

Dunder Main who?

I'm not gonna lie - up until now - I was doing ok with this Python stuff - but I just feel like there is a giant chunk of info missing to sew this concept up in the mind of a novice - ugh! help please!

2 Answers

Alexander Besse
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.a{fill-rule:evenodd;}techdegree seal-36
Alexander Besse
Full Stack JavaScript Techdegree Graduate 35,115 Points

Hi Anthony Costanza!

Python dunder methods are special pre-recognized methods by python that you can place on a class, and are denoted by the double underscore on both sides of the method name.

__init__(self, args..) # Think of this as the constructor of the class. Initialization can be done here.
__len__(self) # The length value you return from here will show when you use `len(classvar)`.
# There are many more dunder methods...

Here is a source to read: https://dbader.org/blog/python-dunder-methods

I haven't taken the python course on Treehouse's platform but I hope that helps. Feel free to reach out for more.

AJ Tran
STAFF
AJ Tran
Treehouse Teacher

Hi Anthony Costanza , check out this video about Dunder Main: https://teamtreehouse.com/library/understanding-dunder-main-main

I hope you will find it helpful!