On 2025-12-29 11:28:27 +0200, Schimon Jehudah via Python-list wrote: > Greetings, one and all. > > I am experimenting with module argparse. > > I would be glad to know of your opinions about this concern. > > Notice dest="class".
Your problem has nothing to do with argparse. This is a property of the
Python language itself.
> Python software
> ---------------
>
> from argparse import ArgumentParser
> parser = ArgumentParser(description="Slixfeed OSTN news service setup.")
>
> parser.add_argument(
> "--class",
> choices=["address", "hostname", "tld"],
> dest="class")
> args = parser.parse_args()
> breakpoint()
>
>
> Execute the software
> --------------------
>
> -> breakpoint()
> (Pdb) args.class
> *** SyntaxError: invalid syntax
> (Pdb)
`class` is a keyword in Python. You can't use `class` where a variable
name or other identifier is expected.
You can access attributes with arbitrary names with getattr:
(Pdb) p getattr(args, "class")
None
But I would not recommend that. Use a non-reserved name instead.
Maybe `feed_class`. Or just `class_`, if you really don't want to be
more specific what kind of class it is.
hjp
--
_ | Peter J. Holzer | Story must make more sense than reality.
|_|_) | |
| | | [email protected] | -- Charles Stross, "Creative writing
__/ | http://www.hjp.at/ | challenge!"
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