28.05.20 22:26, Vito De Tullio пише:
Hi.
Just a question about the new PEG parser: will it support lone slash in
raw strings?
the fact that r'\' doesn't work as expected it's a strange exception to
remember.
As others said, this is a part of the tokenizer. I once experimented
with changing the tokenizer to make a backslash always inert in raw
strings. This change breaks code in ~15 files in the stdlib and tests,
so it would likely break a large amount of user code. The cost is too high.
https://github.com/python/cpython/pull/15217
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