On Mon, 7 Jan 2019 at 09:27, Chris Angelico <ros...@gmail.com> wrote:
>
> On Mon, Jan 7, 2019 at 7:11 PM Anders Hovmöller <bo...@killingar.net> wrote:
> >
> >
> > > This proposal is basically about introducing goto to the language.
> >
> > A bit hyperbolic but I agree that it has the same problem as goto. But the
> > specific suggested solution is not something we should be restricted so
> > rigidly to in this discussion. One could for example see another solution
> > to the same problem:
> >
> > with supress_raise(TypeError, ValueError):
> > do_the_things()
> >
> > I have no idea how to actually implement this though and it's also a bad
> > idea but I think we should first find the best idea to solve the underlying
> > pain point then talk about rejecting or supporting that.
> >
>
> You mean like this?
>
> https://docs.python.org/3/library/contextlib.html#contextlib.suppress
That doesn't do what the OP requested. It suppresses errors from the
outside but doesn't resume execution in the block so e.g.:
a = b = None
with suppress(ValueError):
a = float(str_a)
b = float(str_b)
The OP wants the the b= line to execute even if the a= line raises an exception.
--
Oscar
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