Mutually exclusive options with argparse.

[hongy...@gmail.com]

On Thursday, September 2, 2021 at 10:16:09 AM UTC+8, hongy... at gmail.com wrote:
> On Wednesday, September 1, 2021 at 11:20:21 PM UTC+8, Lee Congdon wrote: 
> > Does a mutually exclusive group, as described in "Mutual exclusion" at 
> > https://docs.python.org/3/library/argparse.html meet your needs?
> Thanks for letting me know about this feature. I'll give it a try.

The exact document URL is located at here [1].

[1] https://docs.python.org/3/library/argparse.html#mutual-exclusion

> > 
> > On Wed, Sep 1, 2021 at 9:48 AM hongy... at gmail.com <hongy... at gmail.com> 
> > wrote: 
> > > See the following code snippets [1] for implementation of the exclusive 
> > > options with argparse: 
> > > 
> > > def query_builder(args): 
> > > if args.r and args.s: 
> > > sys.exit(Term.FAIL + 'Only one of -re and -sql should be set' + 
> > > Term.ENDC) 
> > > sum_status = sum(1 for x in [args.failure, args.code != -1] if x) 
> > > if sum_status > 1: 
> > > sys.exit(Term.FAIL + ('Only one of --failure and --code has to be 
> > > set') + Term.ENDC) 
> > > 
> > > [1] 
> > > https://github.com/hongyi-zhao/recent2/blob/5486afbd56a6b06bb149a3ea969fb33d9d8b288f/recent2.py#L391 
> > > 
> > > It seems that the above method is awkward, but I'm out of idea to work out 
> > > more graceful solutions. Any comment/suggestion/enhancement will be highly 
> > > appreciated. 
> > > 
> > > Regards, 
> > > HY 
> > > -- 
> > > https://mail.python.org/mailman/listinfo/python-list 
> > > 
> > 
> > 
> > -- 
> > +1-202-507-9867, Twitter @lcongdon