Dec 23, 2011 · wow thanks..this actually made alot of sense to me so anything that makes something what it is, I need to pre-declare in the init function. In this case, Dog, has legs and colour. For example, if I made a class that added two numbers, I would declare self.firstnumber and self.secondnumber then just do firstnumber + secondnumber later on in the ...

Mar 22, 2010 · init doesn't return the newly created object - as seen in the TypeError, it is required to return None, right? The newly created object is returned by new , init just sets some of its attributes. But yes, as you said, changing init , or new , to …

Jan 15, 2009 · Because these can be any directory, and arbitrary ones can be added by the end user, the developers have to worry about directories that happen to share a name with a valid Python module, such as 'string' in the docs example. To alleviate this, it ignores directories which do not contain a file named _ _ init _ _.py (no spaces), even if it is ...

Feb 8, 2016 · Since I'm rather new to python this particular aspect of language still opaque for me. So, assume that my project contains many files with code that does stuff and two "service" files: __init__.py...

So it seems that unless I know/control the init's of the classes I inherit from (A and B) I cannot make a safe choice for the class I'm writing (C). Although you can handle the cases where you don't control the source code of A and B by using an adapter class, it is true that you must know how the init's of the parent classes implement super ...

What is the correct type annotation for a __init__ function in python? class MyClass: ... Which of the following would make more sense?

No, it is not necessary to use the init in a class. It's a object constructor that define default values upon calling the class. If you're programming in OOP manner and ought to have a basic structure of your class. You often will need this. I read your other sub-question regarding . Can u explain about the use of "self"??? – harsh Jul 28 '11 ...

Oct 6, 2013 · If the init function of the base class takes some arguments that I am taking them as arguments of the child class's init function, how do I pass these arguments to the base class? The code that I have written is:

Read the answer carefully. It's all about intention. 1) If you want to leave the base class' init logic as is, you don't override init method in your derived class. 2) If you want to extend the init logic from the base class, you define your own init method and then call base class' init method from it.

Oct 14, 2015 · Typically the idiom obj = await Object() provides the synchronous __init__() and async async_init() calls""" async def async_init(self): """If an AsyncMixin object is created in an async context (ie await Object() then the __init__ method is non-async as normal but the async_init() method is called immediately by the __await__() magic method.