I agree that the spirit of the PEP is to stop at the first coding cookie found. Would it be okay if I updated the PEP to clarify this? I'll definitely also update the docs.
On Tue, Mar 15, 2016 at 2:04 PM, Brett Cannon <br...@python.org> wrote: > > > On Tue, 15 Mar 2016 at 13:31 Guido van Rossum <gu...@python.org> wrote: >> >> I came across a file that had two different coding cookies -- one on >> the first line and one on the second. CPython uses the first, but mypy >> happens to use the second. I couldn't find anything in the spec or >> docs ruling out the second interpretation. Does anyone have a >> suggestion (apart from following CPython)? >> >> Reference: https://github.com/python/mypy/issues/1281 > > > I think the spirit of PEP 263 is for the first specified encoding to win as > the support of two lines is to support shebangs and not multiple encodings > :) . I also think the fact that tokenize.detect_encoding() doesn't > automatically read two lines from its input also suggests the intent is > "first encoding wins" (and that is the semantics of the function). -- --Guido van Rossum (python.org/~guido) _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
