ConfigParser: use newline in INI file

[jim.womeldorf at gmail.com]

On Thursday, March 7, 2019 at 8:55:31 AM UTC-6, tony wrote:
> On 07/03/2019 14:16, jim.womeldorf at gmail.com wrote:
> > On Saturday, October 1, 2016 at 7:41:40 PM UTC-5, Ned Batchelder wrote:
> >> On Saturday, October 1, 2016 at 6:25:16 PM UTC-4, Thorsten Kampe wrote:
> >>> * Ben Finney (Sun, 02 Oct 2016 07:12:46 +1100)
> >>>>
> >>>> Thorsten Kampe <thorsten at thorstenkampe.de> writes:
> >>>>
> >>>>> ConfigParser escapes `\n` in ini values as `\\n`.
> >>>
> >>> Indenting solves the problem. I'd rather keep it one line per value 
> >>> but it solves the problem.
> >>
> >> If you want to have \n mean a newline in your config file, you can 
> >> do the conversion after you read the value:
> >>
> >>     >>> "a\\nb".decode("string-escape")
> >>     'a\nb'
> >>
> >> --Ned.
> > 
> > Wow!  Thanks so much Ned.  I've been looking for the solution to this issue for several days and had nearly given up.
> > Jim
> > 
> How does that translate to Python3?

I have no idea.  I'm on 2.7.3  
I'd be interested in knowing if someone would try it on 3.
I do very little Python programming.  I've written a messaging system for Linuxcnc and could not get it to work using bash, so I tried Python and now, thanks to you, I have it working.
I can provide you with the code if you want to play with it.  When it is run with an integer as a parameter it displays a message from an INI file.
Jim