[BangPypers] Does Python have lexical scoping?

[Senthil Kumaran]

On Sun, Nov 9, 2014 at 1:14 AM, Noufal Ibrahim KV <noufal at nibrahim.net.in>
wrote:

> How is lexical scoping with a mutable environment different from dynamic
> scoping?
>

I think you should post this in python-dev and you might get answers with
rigorous definitions.

Here is my short snippet which shows a behavior which does not indicate a
dynamic binding nature.


# example.py
x = 10
y = lambda: x

def f():
    x = 20  # This is not rebinding. It is creating a new local variable by
name x
            # But we are referring to x in y function call, so for the
definition of dynamic binding (?)
            # should y() see x defined in the local scope instead of the
previously assigned value.
    print(y())
    return y()

x = 30  # This is rebinding in the same scope.
print(f())

$ python example.py
30
30