Thanks a lot.
I will read documentation of enum module
בתאריך יום ו׳, 24 ביוני 2022, 14:33, מאת Roel Schroeven <
r...@roelschroeven.net>:
> Op 24/06/2022 om 0:32 schreef Dennis Lee Bieber:
> > On Thu, 23 Jun 2022 18:57:31 +0200, "Dieter Maurer"<die...@handshake.de>
> > declaimed the following:
> >
> > >??? ???? wrote at 2022-6-23 15:31 +0300:
> > >>how to solve this (argparse)
> >
> > >> MAXREPEAT = _NamedIntConstant(32,name=str(32))
> > >>TypeError: 'name' is an invalid keyword argument for int()
> > >
> > >This does not look like an `argparse` problem:
> > >the traceback comes from `oracle/RTR.py`.
> >
> > And the listed code looks quite suspicious to me...
> >
> > >> class _NamedIntConstant(int):
> > >> def __init__(cls, value):
> > >> self = super(_NamedIntConstant, cls).__init__(cls, value)
> > >> self.name = name
> > >> return self
> >
> > There does not appear to be any provision for keyword arguments at
> all.
> > The only use of "name" is to an undefined object.
> >
> The code seems to be a copy of Lib/re/_constants.py (or
> Lib/sre_constants.py before commit
> 1be3260a90f16aae334d993aecf7b70426f98013), but in _constants.py that
> class uses __new__ instead of __init__:
>
> class _NamedIntConstant(int):
> def __new__(cls, value, name):
> self = super(_NamedIntConstant, cls).__new__(cls, value)
> self.name = name
> return self
>
> def __repr__(self):
> return self.name
>
> __reduce__ = None
>
> (unless still older versions did use __init__)
>
> It's used there as a kind of enum. I guess that code was originally
> written before Python had enum.Enum. _makecodes() uses it so create
> named int objects from its arguments, with automatically generated
> consecutive int values, places them in the global namespace (feels like
> a code smell to me) and also returns them.
>
> def _makecodes(*names):
> items = [_NamedIntConstant(i, name) for i, name in
> enumerate(names)]
> globals().update({item.name: item for item in items})
> return items
>
> # operators
> OPCODES = _makecodes(
> # failure=0 success=1 (just because it looks better that way :-)
> 'FAILURE', 'SUCCESS',
>
> 'ANY', 'ANY_ALL',
> 'ASSERT', 'ASSERT_NOT',
> 'AT',
> # ...
> )
>
> נתי שטרן, are you trying to use that semi-enum functionality? Most
> likely you're better of using enum.Enum instead.
>
> --
> "You can fool some of the people all the time, and all of the people some
> of the time, but you cannot fool all of the people all of the time."
> -- Abraham Lincoln
> "You can fool too many of the people too much of the time."
> -- James Thurber
> --
> https://mail.python.org/mailman/listinfo/python-list
>
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