[Tutor] simple question about scope

[Alan Gauld]

On 18/05/2019 09:20, marcus lütolf wrote:

> in learning the principles of Python I came across scope in the
> control structure's section.
> There I read the notion that variables createted inside a 
> control structute can't be seen or accessed from outside that
> structure, Python would raise a Name Error.

I don't know which tutorial you are reading but that's just wrong.
Names created inside functions are local to that function.
Names created inside a module are local to that module
(and rather confusingly referred to as global scope)
Names created inside a class are local to that class.
Names created inside a generator expression are local to that expression.

That's pretty much all you need to know about python scoping.

> However in for loops  - also control structures - like in this
> simple example:

Control structures like for/while/if-else etc have
no influence no name visibility.


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Alan G
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