Traceback (most recent call last):
  File "/usr/lib/python3.10/site-packages/setuptools/config.py", line 35, in __getattr__
    return next(
  File "/usr/lib/python3.10/site-packages/setuptools/config.py", line 36, in <genexpr>
    ast.literal_eval(statement.value)
  File "/usr/lib/python3.10/ast.py", line 108, in literal_eval
    return _convert(node_or_string)
  File "/usr/lib/python3.10/ast.py", line 107, in _convert
    return _convert_signed_num(node)
  File "/usr/lib/python3.10/ast.py", line 81, in _convert_signed_num
    return _convert_num(node)
  File "/usr/lib/python3.10/ast.py", line 72, in _convert_num
    _raise_malformed_node(node)
  File "/usr/lib/python3.10/ast.py", line 69, in _raise_malformed_node
    raise ValueError(msg + f': {node!r}')
ValueError: malformed node or string on line 12: <ast.Call object at 0x4002c03a00>

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/lib/python3.10/site-packages/setuptools/config.py", line 419, in _parse_attr
    return getattr(StaticModule(module_name), attr_name)
  File "/usr/lib/python3.10/site-packages/setuptools/config.py", line 43, in __getattr__
    raise AttributeError(
AttributeError: twisted has no attribute __version__

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/build/python-twisted/src/twisted-twisted-21.7.0/setup.py", line 16, in <module>
    setuptools.setup(
  File "/usr/lib/python3.10/site-packages/setuptools/__init__.py", line 153, in setup
    return distutils.core.setup(**attrs)
  File "/usr/lib/python3.10/distutils/core.py", line 121, in setup
    dist.parse_config_files()
  File "/usr/lib/python3.10/site-packages/setuptools/dist.py", line 798, in parse_config_files
    parse_configuration(
  File "/usr/lib/python3.10/site-packages/setuptools/config.py", line 158, in parse_configuration
    meta.parse()
  File "/usr/lib/python3.10/site-packages/setuptools/config.py", line 498, in parse
    section_parser_method(section_options)
  File "/usr/lib/python3.10/site-packages/setuptools/config.py", line 469, in parse_section
    self[name] = value
  File "/usr/lib/python3.10/site-packages/setuptools/config.py", line 222, in __setitem__
    value = parser(value)
  File "/usr/lib/python3.10/site-packages/setuptools/config.py", line 597, in _parse_version
    version = self._parse_attr(value, self.package_dir)
  File "/usr/lib/python3.10/site-packages/setuptools/config.py", line 422, in _parse_attr
    module = importlib.import_module(module_name)
  File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/build/python-twisted/src/twisted-twisted-21.7.0/src/twisted/__init__.py", line 10, in <module>
    from twisted._version import __version__ as version
  File "/build/python-twisted/src/twisted-twisted-21.7.0/src/twisted/_version.py", line 8, in <module>
    from incremental import Version
ModuleNotFoundError: No module named 'incremental'
==> ERROR: A failure occurred in build().
    Aborting...