New submission from Terry J. Reedy :
https://stackoverflow.com/questions/66286367/why-is-my-function-faster-than-... had some tests of printing speed that showed that print in IDLE can be much slower than in REPL. I did further tests that showed than combining chunks and lines into a single string can erase most of the difference.
For easier review, the first patch just rearranges current paragraphs to bring together those dealing with 2 processes and sys.stdxxx. Some are also re-wrapped. The second patch will contain just the new paragraph.
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assignee: docs@python -> terry.reedy
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Python tracker
https://bugs.python.org/issue43283
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