Maybe a new keyword like `delvalue`? On Thu, Sep 7, 2023 at 10:02 AM Chris Angelico <ros...@gmail.com> wrote:
> On Thu, 7 Sept 2023 at 23:51, Daniel Walker <nickel...@gmail.com> wrote: > > > > Perhaps this is a solution in search of a problem but I recently > encountered this situation in one of my projects. > > > > I have an object, foo, which, due to the references it contains, I'd > rather not keep around longer than necessary. > > > > I use foo to instantiate another object: > > > > bar = Bar(foo) > > > > bar is free to manipulate foo however it wants and even del it if > necessary. However, since the foo name is still around, those resources > won't get cleaned up even if bar is done with them. The simple solution is > > > > bar = Bar(foo) > > del foo > > bar.do_stuff() > > > > I think it would be a nice (and, I hope, painless) addition to the > Python grammar to have del return a reference to the underlying object. > That way, I could simply do > > > > bar = Bar(del foo) > > > > What do y'all think? Juice not worth the squeeze? > > > > If you consider that a namespace is very much like a dictionary, what > you're really doing is a dict.pop() operation - a destructive read. So > it definitely does make sense. However, "del" is a statement, so it > would be a bit awkward to retrofit. Maybe it'd work? It certainly is a > sensible thing to do. > > ChrisA > _______________________________________________ > 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/5EZ5APBGMJO55CCXWAIGOYW4QTRY2ZC7/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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