[Python-Dev] PEP 550 v4

[Stefan Krah]

On Sat, Aug 26, 2017 at 04:13:24PM -0700, Nathaniel Smith wrote:
> On Sat, Aug 26, 2017 at 7:58 AM, Elvis Pranskevichus <elprans at gmail.com> wrote:
> > What we are talking about here is variable scope leaking up the call
> > stack.  I think this is a bad pattern.  For decimal context-like uses
> > of the EC you should always use a context manager.  For uses like Web
> > request locals, you always have a top function that sets the context
> > vars.
> 
> It's perfectly reasonable to have a script where you call
> decimal.setcontext or np.seterr somewhere at the top to set the
> defaults for the rest of the script.

+100.  The only thing that makes sense for decimal is to change localcontext()
to be automatically async-safe while preserving the rest of the semantics.



Stefan Krah