[BUG]: `nonlocal` raising exception if value is not previously set.

[Almas-Ali]

Describe the bug nonlocal raising exception if value is not previously set.

Screenshots or Code snippets

>>> nonlocal s=3
***
AttributeError: 'NoneType' object has no attribute 'set'

[angelcaru]

Do you think it should throw a Radon exception or just create it as a global?

[Almas-Ali]

This should be like Python for now.

>>> nonlocal sdf
  File "<stdin>", line 1
SyntaxError: nonlocal declaration not allowed at module level
>>> def some():
...     nonlocal jhdsfg
... 
  File "<stdin>", line 2
SyntaxError: no binding for nonlocal 'jhdsfg' found
>>> def some():
...     nonlocal abc = 234
  File "<stdin>", line 2
    nonlocal abc = 234
                 ^
SyntaxError: invalid syntax
>>> abc =1243
>>> def some():
...     nonlocal abc=987
  File "<stdin>", line 2
    nonlocal abc=987
                ^
SyntaxError: invalid syntax

[angelcaru]

But it will be harder to implement. And I like the current system better...

[Almas-Ali]

Not everything I am expecting at this moment. But, I do expect, it should not throw any Python error.

[angelcaru]

Yeah, I am not arguing against that. Will integrate into #115 because it's such a small fix. For now it will throw a Radon error. We can change it later.