[issue6367] Change the instruction pointer in python
New submission from vinoth <4vin...@gmail.com>: HI all I am not the too technical guy, but thinking about the new way of controlling the flow instead of throwing an error. as of now if we need to break a control and go back exceptions helps, but it is not a actual way. it would be great if we have a control over the frames execution, I mean A calls B calls C calls D at that point if we think to move directly to B (what error handler do if that B has the handler defined of the error), changing the frames instruction pointer to back to the B's position (in python code without raising an exception) is a really useful for this web applications. Please excuse me if we have this control already, (can u explain?) Thanks Vinoth -- components: Interpreter Core messages: 89833 nosy: vinoth severity: normal status: open title: Change the instruction pointer in python type: feature request versions: Python 3.2 ___ Python tracker <http://bugs.python.org/issue6367> ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6367] Change the instruction pointer in python
vinoth <4vin...@gmail.com> added the comment: I hope exceptions are not created for that purpose,and it is not the actual* /*right way i hope. because, if any of the called methods has the try: except: block, it fails.. and we can't guide other coders, "Don't use try: except:" as it is the language neutral power. But it is easy to implement. Just do as we do in case of exception, but in a user defined way. I hope. Thanks Vinoth On Tue, Jun 30, 2009 at 2:41 AM, Martin v. Löwis wrote: > > Martin v. Löwis added the comment: > > Actually, Python has non-local gotos already, and in a structured way: > by means of exceptions. I don't understand why it is "not a actual way" > - please do consider using a custom exception for that. > > -- > nosy: +loewis > > ___ > Python tracker > <http://bugs.python.org/issue6367> > ___ > -- Added file: http://bugs.python.org/file14403/unnamed ___ Python tracker <http://bugs.python.org/issue6367> ___I hope exceptions are not created for that purpose,and it is not the actual/right way i hope. because, if any of the called methods has the try: except: block, it fails.. and we can't guide other coders, "Don't use try: except:" as it is the language neutral power. But it is easy to implement. Just do as we do in case of exception, but in a user defined way. I hope.ThanksVinothOn Tue, Jun 30, 2009 at 2:41 AM, Martin v. Löwis <mailto:rep...@bugs.python.org";>rep...@bugs.python.org> wrote: Martin v. Löwis <mailto:mar...@v.loewis.de";>mar...@v.loewis.de> added the comment: Actually, Python has non-local gotos already, and in a structured way: by means of exceptions. I don't understand why it is "not a actual way" - please do consider using a custom exception for that. -- nosy: +loewis ___ Python tracker <mailto:rep...@bugs.python.org";>rep...@bugs.python.org> <http://bugs.python.org/issue6367"; target="_blank">http://bugs.python.org/issue6367> ___ -- vin ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6367] Change the instruction pointer in python
vinoth <4vin...@gmail.com> added the comment: HI Exceptions are doing exactly the right way. but what I am telling is a new way of flow control which no languages currently having. On Tue, Jun 30, 2009 at 12:14 PM, Martin v. Löwis wrote: > > Martin v. Löwis added the comment: > > So there is a language feature there already that solves your problem > exactly, and you don't want to use it? Exceptions are *exactly* the > right way to provide non-local gotos in a structured manner. > > I'm opposed to any change to the language because the desired feature is > already there. Use it. Don't tell that it is the wrong way, it is > exactly the right way. > > -- > > ___ > Python tracker > <http://bugs.python.org/issue6367> > ___ > -- Added file: http://bugs.python.org/file14408/unnamed ___ Python tracker <http://bugs.python.org/issue6367> ___HIExceptions are doing exactly the right way. but what I am telling is a new way of flow control which no languages currently having.On Tue, Jun 30, 2009 at 12:14 PM, Martin v. Löwis <mailto:rep...@bugs.python.org";>rep...@bugs.python.org> wrote: Martin v. Löwis <mailto:mar...@v.loewis.de";>mar...@v.loewis.de> added the comment: So there is a language feature there already that solves your problem exactly, and you don't want to use it? Exceptions are *exactly* the right way to provide non-local gotos in a structured manner. I'm opposed to any change to the language because the desired feature is already there. Use it. Don't tell that it is the wrong way, it is exactly the right way. -- ___ Python tracker <mailto:rep...@bugs.python.org";>rep...@bugs.python.org> <http://bugs.python.org/issue6367"; target="_blank">http://bugs.python.org/issue6367> ___ -- vin ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
