GeezerVison

from typing import TYPE_CHECKING, Generic, Type, TypeVar, cast, overload

Traceback (most recent call last):
  File "<stdin>", line 6, in <module>
  File "~/Projects/RustPython/pylib/Lib/runpy.py", line 224, in run_module
    return _run_module_code(code, init_globals, run_name, mod_spec)
  File "~/Projects/RustPython/pylib/Lib/runpy.py", line 94, in _run_module_code
    with _TempModule(mod_name) as temp_module, _ModifiedArgv0(fname):
  File "~/Projects/RustPython/pylib/Lib/runpy.py", line 97, in _run_module_code
    mod_name, mod_spec, pkg_name, script_name)
  File "~/Projects/RustPython/pylib/Lib/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n/pip-23.2.1-py3-none-any.whl/pip/__main__.py", line 24, in <module>
  File "/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n/pip-23.2.1-py3-none-any.whl/pip/_internal/cli/main.py", line 77, in main
  File "/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n/pip-23.2.1-py3-none-any.whl/pip/_internal/commands/__init__.py", line 114, in create_command
  File "~/Projects/RustPython/pylib/Lib/importlib/__init__.py", line 90, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "_frozen_importlib", line 1382, in _gcd_import
  File "_frozen_importlib", line 1352, in _find_and_load
  File "_frozen_importlib", line 1355, in _find_and_load
  File "_frozen_importlib", line 1329, in _find_and_load_unlocked
  File "_frozen_importlib", line 1326, in _find_and_load_unlocked
  File "_frozen_importlib", line 1326, in _find_and_load_unlocked
  File "_frozen_importlib", line 945, in _load_unlocked
  File "_frozen_importlib", line 943, in _load_unlocked
  File "_frozen_importlib", line 936, in _load_unlocked
  File "_frozen_importlib", line 930, in _load_unlocked
  File "_frozen_importlib_external", line 994, in exec_module
  File "_frozen_importlib", line 488, in _call_with_frames_removed
  File "/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n/pip-23.2.1-py3-none-any.whl/pip/_internal/commands/install.py", line 15, in <module>
  File "/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n/pip-23.2.1-py3-none-any.whl/pip/_internal/cli/req_command.py", line 26, in <module>
  File "/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n/pip-23.2.1-py3-none-any.whl/pip/_internal/operations/prepare.py", line 32, in <module>
  File "/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n/pip-23.2.1-py3-none-any.whl/pip/_internal/network/download.py", line 11, in <module>
  File "/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n/pip-23.2.1-py3-none-any.whl/pip/_internal/cli/progress_bars.py", line 4, in <module>
  File "/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n/pip-23.2.1-py3-none-any.whl/pip/_vendor/rich/progress.py", line 273, in <module>
  File "~/Projects/RustPython/pylib/Lib/_py_abc.py", line 36, in __new__
    cls = super().__new__(mcls, name, bases, namespace, **kwargs)
TypeError: duplicate base class Generic
Traceback (most recent call last):
  File "~/Projects/RustPython/pylib/Lib/runpy.py", line 197, in _run_module_as_main
    "__main__", mod_spec)
  File "~/Projects/RustPython/pylib/Lib/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "~/Projects/RustPython/pylib/Lib/ensurepip/__main__.py", line 5, in <module>
    sys.exit(ensurepip._main())
  File "~/Projects/RustPython/pylib/Lib/ensurepip/__init__.py", line 290, in _main
    default_pip=args.default_pip,
  File "~/Projects/RustPython/pylib/Lib/ensurepip/__init__.py", line 167, in _bootstrap
    with tempfile.TemporaryDirectory() as tmpdir:
  File "~/Projects/RustPython/pylib/Lib/ensurepip/__init__.py", line 200, in _bootstrap
    return _run_pip([*args, *_PACKAGE_NAMES], additional_paths)
  File "~/Projects/RustPython/pylib/Lib/ensurepip/__init__.py", line 101, in _run_pip
    return subprocess.run(cmd, check=True).returncode
  File "~/Projects/RustPython/pylib/Lib/subprocess.py", line 548, in run
    with Popen(*popenargs, **kwargs) as process:
  File "~/Projects/RustPython/pylib/Lib/subprocess.py", line 572, in run
    output=stdout, stderr=stderr)
CalledProcessError: (1, ['~/Projects/RustPython/target/debug/rustpython', '-W', 'ignore::DeprecationWarning', '-c', '\nimport runpy\nimport sys\nsys.path = [\'/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n/pip-23.2.1-py3-none-any.whl\'] + sys.path\nsys.argv[1:] = [\'install\', \'--no-cache-dir\', \'--no-index\', \'--find-links\', \'/var/folders/4l/db5by6f97gl8z692_wckqb3w0000gn/T/tmpp0rarl2n\', \'--upgrade\', \'pip\']\nrunpy.run_module("pip", run_name="__main__", alter_sys=True)\n'])

new heap type: _ReadContext
-- start resolve_mro for:AbstractContextManager, Generic, Generic, 
   base: AbstractContextManager
   base: Generic
   base: Generic

import typing
from typing import ContextManager, Generic, TextIO, BinaryIO
_I = typing.TypeVar("_I", TextIO, BinaryIO)
class _ReadContext(ContextManager[_I], Generic[_I]):
    pass