gistfile1.txt

FAILURE  #0 lint

Traceback (most recent call last):
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/plugins/manager.py", line 175, in load_plugin
    self._load(verify_requirements)
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/plugins/manager.py", line 147, in _load
    self._plugin = resolve()
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/pkg_resources/__init__.py", line 2308, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/pyi.py", line 182
    can_have_strict_equals: Optional[int] = None
                          ^
SyntaxError: invalid syntax

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/vilmibm/.virtualenvs/mypy/bin/flake8", line 11, in <module>
    sys.exit(main())
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/main/cli.py", line 16, in main
    app.run(argv)
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/main/application.py", line 328, in run
    self._run(argv)
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/main/application.py", line 315, in _run
    self.initialize(argv)
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/main/application.py", line 297, in initialize
    self.find_plugins()
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/main/application.py", line 147, in find_plugins
    self.check_plugins.load_plugins()
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/plugins/manager.py", line 392, in load_plugins
    plugins = list(self.manager.map(load_plugin))
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/plugins/manager.py", line 284, in map
    yield func(self.plugins[name], *args, **kwargs)
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/plugins/manager.py", line 390, in load_plugin
    return plugin.load_plugin()
  File "/home/vilmibm/.virtualenvs/mypy/lib/python3.5/site-packages/flake8/plugins/manager.py", line 183, in load_plugin
    raise failed_to_load
flake8.exceptions.FailedToLoadPlugin: Flake8 failed to load plugin "Y0" due to invalid syntax (pyi.py, line 182).