[Tutor] simple question about scope SOLVED
marcus lütolf
marcus.luetolf at bluewin.ch
Sat May 18 09:59:56 EDT 2019
Many thanks for this quick answer.
I unfortunatly misread the tutorial (edx Course CS1301xII, Computing in Python II: Control Structures)
concerning scope insofar as a NameError arises if a variable is accessed which was not created inside
the control structure.
Marcus.
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Von: Tutor [mailto:tutor-bounces+marcus.luetolf=bluewin.ch at python.org] Im Auftrag von Alan Gauld via Tutor
Gesendet: Samstag, 18. Mai 2019 12:34
An: tutor at python.org
Betreff: Re: [Tutor] simple question about scope
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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