Mark Dickinson <dicki...@gmail.com> added the comment: This is not a bug. The behaviour you're seeing is described here:
http://docs.python.org/reference/executionmodel.html#naming-and-binding "If a name binding operation occurs anywhere within a code block, all uses of the name within the block are treated as references to the current block. This can lead to errors when a name is used within a block before it is bound. This rule is subtle. Python lacks declarations and allows name binding operations to occur anywhere within a code block. The local variables of a code block can be determined by scanning the entire text of the block for name binding operations." In the failing example, the registerdecorator function contains an assignment to in_std, so by the rules above in_std is local to the function. The 'if in_std' line therefore tries to lookup 'in_std' in the local namespace; it doesn't exist (yet), so an UnboundLocalError exception occurs. ---------- nosy: +marketdickinson resolution: -> invalid status: open -> closed _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue6833> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
