"Resource temporarily unavailable" for flake8

[jbecker7]

Going through the homework, I was able to fix the Python program and ran

$ python3 -m doctest Fixme.py

with no output, as expected.

However, once I ran

$ flake8 Fixme.py

I got back this long and unexpected output:

Traceback (most recent call last):
  File "/usr/bin/flake8", line 11, in <module>
    load_entry_point('flake8==3.5.0', 'console_scripts', 'flake8')()
  File "/usr/lib/python3/dist-packages/flake8/main/cli.py", line 16, in main
    app.run(argv)
  File "/usr/lib/python3/dist-packages/flake8/main/application.py", line 396, in run
    self._run(argv)
  File "/usr/lib/python3/dist-packages/flake8/main/application.py", line 383, in _run
    self.initialize(argv)
  File "/usr/lib/python3/dist-packages/flake8/main/application.py", line 371, in initialize
    self.make_file_checker_manager()
  File "/usr/lib/python3/dist-packages/flake8/main/application.py", line 293, in make_file_checker_manager
    checker_plugins=self.check_plugins,
  File "/usr/lib/python3/dist-packages/flake8/checker.py", line 89, in __init__
    self.pool = multiprocessing.Pool(self.jobs, _pool_init)
  File "/usr/lib/python3.6/multiprocessing/context.py", line 119, in Pool
    context=self.get_context())
  File "/usr/lib/python3.6/multiprocessing/pool.py", line 174, in __init__
    self._repopulate_pool()
  File "/usr/lib/python3.6/multiprocessing/pool.py", line 239, in _repopulate_pool
    w.start()
  File "/usr/lib/python3.6/multiprocessing/process.py", line 105, in start
    self._popen = self._Popen(self)
  File "/usr/lib/python3.6/multiprocessing/context.py", line 277, in _Popen
    return Popen(process_obj)
  File "/usr/lib/python3.6/multiprocessing/popen_fork.py", line 19, in __init__
    self._launch(process_obj)
  File "/usr/lib/python3.6/multiprocessing/popen_fork.py", line 66, in _launch
    self.pid = os.fork()
BlockingIOError: [Errno 11] Resource temporarily unavailable

I am wondering if this is just an issue on my local machine or if others are having the same problem.

[finnless]

Try running it with the -j1 flag like:

$ flake8 -j1 Fixme.py

Fix from: https://github.com/mikeizbicki/cmc-csci046/issues/330#issuecomment-1398945196

[jbecker7]

@finnless That worked! Wow, -jl is great. Thanks so much :)