Introduction To Python 3 Objects

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Introduction To Python Objects
In this Python tutorial, we will provide you with an introduction to Python objects. We will explain what an object is, why it is so important and then tell you that you will see objects in every tutorial from this point on. Now that I confused you, scared you and made you a little hesitant about this course. Don’t worry objects are easy!+

What Is An Object?
The most simplistic way to put it is an object is everything in Python. But that explanation probably confused you more. More technical explanation of an object is pretty simple as well, an object is a piece of memory that contains an identity, value, reference counter and a type. Occasionally, objects can contain a reference to other objects.+

Identity – is the location of the object or as Python puts it “Objects Address In Memory”.
Value – Is the actual data for example, the number 4 is a value so is “Hello, World!”
Type – I the type of data for example 4 is an integer and “Hello, World!” is a string. More on this in the next tutorial.
Reference Counter – The reference counter keeps count of the number of references the object has. When the counter goes to zero it can be deleted based on other factors which we will cover in a future tutorial.
Reference – This is only present when an object’s value contains another objects for example in a list. A list which contains values in Python is an object that references other objects. We will talk more about this when we get to list, dictionaries, tuples, files and so on.
Some objects have data that can not be changed and these objects are call immutable. Then others can be changed they are called mutable objects. I will introduce the different data types in the next couple tutorials and we will look at which one is immutable and which are not mutable.