[issue26331] Tokenizer: allow underscores for grouping in numeric literals
Georg Brandl
report at bugs.python.org
Wed Feb 10 13:43:40 EST 2016
Georg Brandl added the comment:
It sure is more strict, but I don't think it's simpler (and it's definitely not simpler to implement).
(Also 1_j is pretty nice, I wouldn't want to lose that.)
We can also check what other languages do.
* Rust: very much like this, but trailing underscores allowed.
* Perl 5: same as here, but underscores after dot and trailing underscores allowed.
* Ruby: only between digits.
* Swift: the grammar productions say it's basically the same as Rust. The textual description says "between digits".
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