Oct. 10, 2017
12:42 p.m.
On 10 October 2017 at 22:34, Koos Zevenhoven <k7hoven@gmail.com> wrote:
Really, it was my mistake to ever make you think that context_var.assign(42).__enter__() can be compared to .set(42) in PEP 550. I'll say it once more: PEP 555 context arguments have no equivalent of the PEP-550 .set(..).
Then your alternate PEP can't work, since it won't be useful to extension modules. Context managers are merely syntactic sugar for try/finally statements, so you can't wave your hands and say a context manager is the only supported API: you *have* to break the semantics down and explain what the try/finally equivalent looks like. Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia