Please tell me how to execute python file in Ubuntu by double

[Chris Angelico]

On Fri, Dec 15, 2017 at 3:06 AM, Dennis Lee Bieber
<wlfraed at ix.netcom.com> wrote:
> C:\Users\Wulfraed>assoc .docx
> .docx=Word.Document.12
>
> C:\Users\Wulfraed>ftype word.document.12
> word.document.12="C:\Program Files\Microsoft
> Office\Root\Office16\WINWORD.EXE" /n "%1" /o "%u"

I'm almost afraid to ask... why "word.document.12" and why "Office16"?
If only one of those, I would guess that it's a version number
("Office16" ==> MS Office 2016?), but there are two of them and they
disagree...

ChrisA