On 6/1/2011 1:41 PM, Terry Reedy wrote:
On 6/1/2011 12:52 AM, Carl M. Johnson wrote:
So, my proposal is that += by itself should not cause x to be considered a local variable.
While I do understand your point, I also value uniformity. -1
There is another problem I had not thought of before. Right now, Python has (always had) a simple rule: code in a function CANNOT rebind names in outer scopes unless the function has a global or nonlocal declaration. This simple, uniform rule benefits not only the interpreter but human readers. It should not be broken. def f(): 'doc for f' def g(): 'docstring of g' <body of g> <body of f> If g is the only nested function and the body of g does not have a nonlocal declaration (which OUGHT to be at the top if present), then a reader or maintainer of f knows (without reading g in detail) that nothing other that <body of f> can rebind f's locals. -- Terry Jan Reedy