[Python-Dev] Re: PEP 622 version 2 (Structural Pattern Matching)

2020年7月09日 08:55:20 -0700

On 09/07/2020 01:27, Ethan Furman wrote:
On 07/08/2020 10:44 AM, Ethan Furman wrote:
So namespaced variables only... is there a recommendation on handling global() and local() type variables?
Okay, some off-list discussion clarified that for me:
- easiest way is to use a guard
```
  def foo(x, spam):
    match x:
      case Point(p, q, context=c) if c == spam:
        # Match
```
I like this one. Doesn't it also solve the issue of store vs. load? Everything is stored but the guard clause can look-up.
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