[Python-Dev] Compile() and Windows/Mac newlines (original) (raw)

Terry Reedy tjreedy at udel.edu
Wed Dec 29 21:02:34 CET 2010

On 12/29/2010 2:31 PM, Terry Reedy wrote:

In python-list thread "Does Python 3.1 accept \r\n in compile()?" jmfauth notes that compile('print(999)\r\n', '', 'exec') works in 2.7 but not 3.1 (and 3.2 not checked) because 3.1 sees '\r' as SyntaxError.

I started to respond that this is part of Py3 cleanup with newlines converted on input and back-compatibility with ancient Python not needed. Then I saw in 3.2 manual "Changed in version 3.2: Allowed use of Windows and Mac newlines. Also input in 'exec' mode does not have to end in a newline anymore. Added the optimize parameter." I verified second statement ("print(999)" works) (and remember commit for third), but original above gives same error. Should "Allowed use of Windows and Mac newlines." be deleted? What else could it mean other than use of '\r' or '\r\n'?

After tracing the questioned comment to B.Peterson's r76232 merged from 2.7 r76230 "fix several compile() issues by translating newlines in the tokenizer", I decided to open http://bugs.python.org/issue10792

-- Terry Jan Reedy

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