How to preserve newlines in argparse version output while letting argparse auto-format/wrap the remaining help message?
Question: I wrote the following code.

    
    
    import argparse
    
    parser = argparse.ArgumentParser()
    parser.add_argument('-v', '--version', action='version',
                        version='%(prog)s 1.0\nCopyright (c) 2016 Lone Learner')
    parser.parse_args()
    

This produces the following output.

    
    
    $ python foo.py --version
    foo.py 1.0 Copyright (c) 2016 Lone Learner
    

You can see that the newline is lost. I wanted the copyright notice to appear
on the next line.

How can I preserve the new lines in the version output message?

I still want argparse to compute how the output of `python foo.py -h` should
be laid out with all the auto-wrapping it does. But I want the version output
to be a multiline output with the newlines intact.


Answer: `RawTextHelpFormatter` will turn off the automatic wrapping, allowing your
explicit `\n` to appear. But it will affect all the `help` lines. There's no
way of picking and choosing. Either accept the default wrapping, or put
explicit newlines in all of your help lines.

You are getting to a level of pickiness about the help format that you need to
study the `HelpFormatter` code for yourself.

