On 3 June 2017 at 01:29, Guido van Rossum <gu...@python.org> wrote: > Are those characters not considered Unicode letters? Maybe we could add > their category to the allowed set? > > Yes, they are not considered letters, they are in category Sm. Unfortunately, +, -, |, and other symbol that clearly should not be in identifiers are also in this category, so we cannot add the whole category. It is possible to include particular ranges, but there should be a discussion about what exactly can/should be included.
-- Ivan
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