04.05.18 20:48, Tim Peters пише:
[Guido]
Can I recommend going slow here? This is a very interesting topic where many
languages have gone before. I liked Daniel F Moisset's analysis about the
choices of a language designer and his conclusion that match should be a
statement.
Just to be annoying ;-) , I liked the way he _reached_ that
conclusion: by looking at real-life Python code that may have been
written instead to use constructs "like this". I find such
examination far more persuasive than abstract arguments or made-up
examples.
I would like to see such examination for PEP 572. And for all other
syntax changing ideas.
I withdrew some my ideas and patches when my examinations showed that
the number of cases in the stdlib that will take a benefit from
rewriting using a new feature or from applying a compiler optimization
is not large enough.
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