On 17 Jan 2014 09:36, "Terry Reedy" <tjre...@udel.edu> wrote: > > On 1/16/2014 4:59 PM, Guido van Rossum wrote: > >> I'm getting tired of "did you understand what I said". > > > I was asking whether I needed to repeat myself, but forget that. > I was also saying that while I understand 'ascii-compatible encoding', I do not understand the notion of 'ascii-compatible data' or statements based on it.
There are plenty of data formats (like SMTP and HTTP) that are constrained to be ASCII compatible, either globally, or locally in the parts being manipulated by an application (such as a file header). ASCII incompatible segments may be present, but in ways that allow the data processing to handle them correctly. The ASCII assuming methods on bytes objects are there to help in dealing with that kind of data. If the binary data is just one large block in a single text encoding, it's generally easier to just decode it to text, but multipart formats generally don't allow that. > > _______________________________________________ > 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/ncoghlan%40gmail.com
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