Should the Python "global" statement be accepted and ignored?

[lelit]

In JS there isn't an equivalent of the global statement in Python: in a sense, a variable is automatically put in the global scope when it is not declared, so the following snippet behaves differently when run under Python than under JS:

some_global = None

def get_global():
    if some_global:
        return some_global
    # compute it
    some_global = 'foo'
    return some_global

Python itself would raise an UnboundLocalError, while pyflakes reports local variable 'some_global' (defined in enclosing scope on line 1) referenced before assignment.

So I wonder whether pj could/should allow me to put a global statement in that function, adding a null-transform for its node type, in other words simply ignoring the declaration. It would be a bonus if it could even check for the existence of those global(s), just to avoid typos...

[azazel75]

i'm not sure if JavaScripthon shoud work as a generic syntax-checker, especially on a statement that it sould ignore ;-)

[lelit]

Do you foresee possible negative effects in my proposal?

[azazel75]

One, the fact that when someone uses JavaScripthon he may think that it also does some kind code checking, more than what the Python's parser alone does. It is not... I think that if a this has to be implemented, the scope checking has to be activated with an option like '--enable-scope-checks' on cmdline