How to diagnose this, fails on 3.6.3, works on 3.5.2?

[Chris Green]

Peter Otten <__peter__ at web.de> wrote:
> Chris Green wrote:
> 
> > I have a fairly simple little python program to automate starting an
> > editor on a wiki page.  It works fine on the system where I wrote it
> > (xubuntu 16.04, python 3 version 3.5.2) but it comes up with the
> > following error on a newer system (xubuntu 17.10, python 3 version
> > 3.6.3).
> > 
> > Here is the error:-
> > 
> >     chris$ no
> >     Traceback (most recent call last):
> >       File "/home/chris/bin/no", line 59, in <module>
> >         os.execvp("vi", ("", monthFile,))
> >       File "/usr/lib/python3.6/os.py", line 559, in execvp
> >         _execvpe(file, args)
> >       File "/usr/lib/python3.6/os.py", line 594, in _execvpe
> >         exec_func(fullname, *argrest)
> >     ValueError: execv() arg 2 first element cannot be empty
> > 
> > Has execvp() become stricter in 3.6.3 or what?
> 
> Yes; the relevant issue on the bug tracker seems to be
> 
> https://bugs.python.org/issue28732
> 
OK, thanks all, I just need to put 'vi' in that empty parameter.

-- 
Chris Green
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