Weird problem matching with REs

[Chris Angelico]

On Mon, May 30, 2011 at 2:16 AM, Andrew Berg <bahamutzero8825 at gmail.com> wrote:
>> Also, be sure to
>> use a raw string when composing REs, so you don't run into backslash
>> issues.
> How would I do that when grabbing strings from a config file (via the
> configparser module)? Or rather, if I have a predefined variable
> containing a string, how do change it into a raw string?
>

"Raw string" is slightly inaccurate. The Python "raw string literal"
syntax is just another form of string literal:

'apostrophe-delimited string'
"quote-delimited string"
"""triple-quote string
which may
go over
multiple lines"""
'''triple-apostrophe string'''
r'raw apostrophe string'
r"raw quote string"

They're all equivalent once you have the string object. The only
difference is how they appear in your source code. If you read
something from a config file, you get a string object directly, and
you delimit it with something else (end of line, or XML closing tag,
or whatever), so you don't have to worry about string quotes.

Chris Angelico