Perhaps we need a library for creating/managing threads that inherits all
current context values?

On Thu, Aug 19, 2021 at 7:48 AM Paul Prescod <pres...@gmail.com> wrote:

> There are certain values that are managed independent of any specific
> code-accessible object. The decimal precision is a good example:
>
> https://docs.python.org/3/library/decimal.html
>
> We can call these context variables. As your code shows, the true "home"
> of the "prec" value is not some object you manage in your code, but rather
> some background object called the Context.
>
> The Context is not inherited by sub-threads.
>
> Your code is fine, because you did not use threads. Replace the map with
> concurrent.futures code (as in my example).
>
> Your code will not work properly anymore. This is the issue.
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