wad fails to build with Python 3.9.0a6.

=================================== FAILURES ===================================
______________________________ test_clues_correct ______________________________

    def test_clues_correct():
        #
        # If there's an error, run py.test with -l option to see which field has failed.
        #
        clues = _Clues()
>       clues.load_clues(CLUES_FILE)

wad/tests/test_clues.py:27: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
wad/clues.py:91: in load_clues
    self.apps, self.categories = self.read_clues_from_file(filename)
wad/clues.py:52: in read_clues_from_file
    clues = json.load(json_data, encoding='utf-8')
/usr/lib64/python3.9/json/__init__.py:293: in load
    return loads(fp.read(),
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

s = '{\n  "$schema": "../schema.json",\n  "apps": {\n    "1C-Bitrix": {\n      "cats": [\n        1\n      ],\n      "head...lancer",\n      "priority": 7\n    },\n    "66": {\n      "name": "UI Frameworks",\n      "priority": 7\n    }\n  }\n}'
cls = <class 'json.decoder.JSONDecoder'>, object_hook = None, parse_float = None
parse_int = None, parse_constant = None, object_pairs_hook = None
kw = {'encoding': 'utf-8'}

    def loads(s, *, cls=None, object_hook=None, parse_float=None,
            parse_int=None, parse_constant=None, object_pairs_hook=None, **kw):
        """Deserialize ``s`` (a ``str``, ``bytes`` or ``bytearray`` instance
        ...
        """
        if isinstance(s, str):
            if s.startswith('\ufeff'):
                raise JSONDecodeError("Unexpected UTF-8 BOM (decode using utf-8-sig)",
                                      s, 0)
        else:
            if not isinstance(s, (bytes, bytearray)):
                raise TypeError(f'the JSON object must be str, bytes or bytearray, '
                                f'not {s.__class__.__name__}')
            s = s.decode(detect_encoding(s), 'surrogatepass')
    
        if (cls is None and object_hook is None and
                parse_int is None and parse_float is None and
                parse_constant is None and object_pairs_hook is None and not kw):
            return _default_decoder.decode(s)
        if cls is None:
            cls = JSONDecoder
        if object_hook is not None:
            kw['object_hook'] = object_hook
        if object_pairs_hook is not None:
            kw['object_pairs_hook'] = object_pairs_hook
        if parse_float is not None:
            kw['parse_float'] = parse_float
        if parse_int is not None:
            kw['parse_int'] = parse_int
        if parse_constant is not None:
            kw['parse_constant'] = parse_constant
>       return cls(**kw).decode(s)
E       TypeError: __init__() got an unexpected keyword argument 'encoding'

/usr/lib64/python3.9/json/__init__.py:359: TypeError
...


See https://docs.python.org/3.9/whatsnew/3.9.html#removed

"The encoding parameter of json.loads() has been removed. As of Python 3.1, it was deprecated and ignored; using it has emitted a DeprecationWarning since Python 3.8."



For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.9/fedora-rawhide-x86_64/01377024-wad/

For all our attempts to build wad with Python 3.9, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.9/package/wad/

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.9:
https://copr.fedorainfracloud.org/coprs/g/python/python3.9/

Let us know here if you have any questions.

Python 3.9 will be included in Fedora 33. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.9.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.