Hello,
Just a quick correction, in case a begginer sees this thread.
You can use raw strings for Windows paths, except when they end with a
backslash.
This works:
path = r'somewhere\some\folder'
filepath = r'somewhere\some\folder\file.txt'
This also works:
from os import sep
path = r'somewhere\some\folder' + sep
This doesn't work:
path = r'somewhere\some\folder\'
Best regards,
João Matos
On 22/02/2020 06:26, Steven D'Aprano wrote:
On Fri, Feb 21, 2020 at 10:19:37PM -0500, David Mertz wrote:
On Fri, Feb 21, 2020 at 9:26 PM Steven D'Aprano <[email protected]> wrote:
And what's so special about SQL over, say, regular expressions, XML,
JSON, YAML, Markdown, ReST, LaTeX, etc? I might want to use the s''
prefix for embedded Scheme code rather than SQL.
Um, regular expressions are not precisely the best example there, since
we do have raw strings specifically for regular expressions.
I mentioned them also in my similar list, but deliberately. *Raw strings*
are not per-se for regexen, even if that is one of the more common uses.
Actually, in Python, regexes are the primary reason raw strings were
added!
Raw strings aren't quite fully raw, which is why you can't use raw
strings for Windows paths:
path = r'somewhere\some\folder\'
doesn't work. The reason is that "raw" (semi-cooked?) strings are
intended for regexes, not as a general mechanism for disabling string
escape codes, and regexes aren't allow to end with a bare backslash.
https://docs.python.org/3/faq/design.html#why-can-t-raw-strings-r-strings-end-with-a-backslash
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