On Tue, Jan 30, 2018 at 1:48 PM, Prahallad Achar <[email protected]> wrote:
> def a() :
> Print (value)
> def b() :
> Value = 100
> Return b
>
> Its a nested function. How can I use variable value just one function
> above the parent function.
> This is possible in tcl.. Is it possible in Python too?
It is. What you have is a "nonlocal" variable. You will need to assign
to the variable in the outer function though.
def a():
value = None
def b():
nonlocal value
value = 100
return b
You can do this through any number of levels of nested functions.
ChrisA
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