> This is answered by the PEP: > > A partial output implementation, where strings passed to fp.write() > would be converted to use fp.newlines as their line terminated but > all other output would not is far too surprising, in my view. > > Because there is no output support for universal newlines there is > also no support for a mode "rU+": the surprise factor of the > previous paragraph would hold to an even stronger degree. I've read that, but I don't agree with the second paragraph. Universal newline support is available only for input. This sentence is enough to easily predict the behavior in every usage case, including "+" modes. If there's any intent to add support to output, then I'd understand the exclusion, since this would make backwards compatibility possible (users of "rU+" could have their code broken, since they were doing output by hand). Otherwise, it should be allowed, IMO. -- Gustavo Niemeyer [ 2AAC 7928 0FBF 0299 5EB5 60E2 2253 B29A 6664 3A0C ]
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