On Feb 7, 2018 1:54 PM, "Neil Girdhar" wrote: Decimal could just pull its Context object from a context variable rather than having to pass it in to all functions. This would be similar to how numpy works. Decimal has always used a thread local context the same way numpy does, and in 3.7 it's switching to use a PEP 567 context: https://bugs.python.org/issue32630 -n

On 8 February 2018 at 08:36, Neil Girdhar wrote:

Wow, that's awesome! I didn't notice that when I checked. It seemed like context had to be passed in. If it were me, I would probably deprecate those context=None arguments now that we have such a clean solution.

The context=None feature is there so that developers can write pure Decimal operations if they choose to do so, rather than always depending on implicit dynamic state. Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia