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[QUOTE="Peter Otten, post: 1745489"]
The name "self" is just a convention. Python passes the instance to a
method, i. e. a def ... inside the class as its first parameter:
....     def method(self):
....             self.value = 2
....

So you could say that self is accessible inside (normal) methods.
Now let's create an instance:

Calling the method:

This is just a shortcut for:

with the important difference that the first form will automatically pick
the "right" method when inheritance comes into play.

Now to the value attribute. The way you defined it, it is a class attribute,
something that ist best avoided at this early state of the learning curve.
What you want is rather an instance attribute, i. e. something that may be
different for every instance of the class. These are initialized in the
__init__() method, which is called implicitly when you say Test():
....     def __init__(self):
....             self.value = 1000
....     def method(self, newvalue):
....             self.value = newvalue
....
3210

Peter
[/QUOTE]

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