Tim writes: > I've read a couple of articles about this, but still not sure. > > When someone talks about a closure in another language (I'm learning > Lua on the side), is that the same concept as a decorator in Python? > > It sure looks like it.
I don't see how. Wikipedia's opening paragraph on "closure" seems good to me - closures are a way to implement lexical scoping when functions that have free variables are passed as arguments and returned as values: <http://en.wikipedia.org/wiki/Closure_(computer_science)> # In programming languages, a closure (also lexical closure or # function closure) is a function or reference to a function together # with a referencing environment—a table storing a reference to each # of the non-local variables (also called free variables or upvalues) # of that function.[1] A closure—unlike a plain function # pointer—allows a function to access those non-local variables even # when invoked outside its immediate lexical scope. There's an example in Python on that page. -- https://mail.python.org/mailman/listinfo/python-list