On Sun, 23 May 2021 at 17:43, <2qdxy4rzwzuui...@potatochowder.com> wrote: > > On 2021-05-23 at 16:30:35 +0200, > Marco Sulla <marco.sulla.pyt...@gmail.com> wrote: > > > On Sun, 23 May 2021 at 14:50, Chris Angelico <ros...@gmail.com> wrote: > > > > > > On Sun, May 23, 2021 at 10:42 PM Marco Sulla > > > <marco.sulla.pyt...@gmail.com> wrote: > > > > > > > > On Sun, 23 May 2021 at 14:35, Chris Angelico <ros...@gmail.com> wrote: > > > > > > > > > > On Sun, May 23, 2021 at 10:30 PM Marco Sulla > > > > > <marco.sulla.pyt...@gmail.com> wrote: > > > > > > > > > > > > I think the only reason to introduce something like `private` is > > > > > > refactoring. If you added a `_variable` and later you decided to > > > > > > expose it, you have to change it to `variable`. This is something > > > > > > that > > > > > > in languages like Java is not necessary, you have only to change the > > > > > > variable from private to public. This sometimes bothered me in > > > > > > Python. > > > > > > > > > > Since you started with it private, you should be able to solve this > > > > > with a simple search-and-replace within the class's own definition. > > > > > Nothing outside the class should be affected. If it's that hard to > > > > > replace "self._variable" with "self.variable" > > > > > > > > And, in non-trivial cases, it is :) > > > > > > I'm curious as to what sort of non-trivial cases you have to deal > > > with, where you have something harder than search-and-replace > > > > For example, having _variable in another class. > > Then it isn't/wasn't private.
I'm not saying _variable of the class A I want to rename is used by the class B. I'm saying that there could exist another class B that has a _variable with the same name. In this case, a simple search and replace all will fail. > > > > Do you yearn for actual refactoring tools - which do exist? > > > > Renaming tools of IDE do not work in 100% of the cases. For example, > > if you have _variable in an eval string, it's not replaced. > > Another reason not to use eval. I completely agree, but the world is not perfect. Another example is the use of the _variable in a f-string. > > > > Or maybe most Python programmers don't think in terms of private > > > members, and it's easier to just make something public from the start. > > > > Naaaa, I see private vars used a lot. It's @property that, it seems to > > me, is used sporadically. > > I suspect that I am not "most Python programmers,", but I always think > of state (aka members, variables, attributes) as private and internal. > If I think I need to reach into an application level object for its > state (to read it or to write it), or that I need a getter, let alone a > setter, then I'm doing (or have done) somthing else wrong. > _______________________________________________ > Python-ideas mailing list -- python-ideas@python.org > To unsubscribe send an email to python-ideas-le...@python.org > https://mail.python.org/mailman3/lists/python-ideas.python.org/ > Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/MDCRGZBOHLTC5DGJFYXGOIJZ2WECT5YL/ > Code of Conduct: http://python.org/psf/codeofconduct/ _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/RICX4FO3XOEEVVBUZCC6UZB2VUBWUMLG/ Code of Conduct: http://python.org/psf/codeofconduct/
