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Tue Jul 13 00:26:03 CEST 2010 · https://mail.python.org/pipermail/python-dev/2010-July/101839.html

I'm trying to determine if this is intended behavior:

>>> r"\""
'\\"'

>>> r'\''
"\\'"

Normally, the quote would end the string, but it gets escaped by the
preceding '\'. However, the preceding slash is interpreted as 'not a
backslash' because of the raw indicator, so it gets left in verbatim.

Note that it works anywhere:

>>> r"testing \" backslash and quote"
'testing \\" backslash and quote'

It happens that this is the behavior I want, but it seemed just as
likely to be an error. I tested it with python2.5 and 2.6 and got the
same results.

Is this something I can count on? Or is it undefined behavior and I
should really not be doing it?

John
=:->

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[Python-Dev] Intended behavior of backlash in raw strings