Problem with socket monkeypatch

[jespino]

Hi, I'm trying to port locust (http://github.com/locustio/locust) from python2 + gevent to python3 + guv, but I have a problem with the socket mockey patch.

I don't know how to solve it, but when i run the app, the IOClosed exceptions reach a socket library exceptions handler, and crash.

Without the sockets in the monkey patch everything works (in sync mode).

Here is the trackeback

Traceback (most recent call last):
File "/usr/lib64/python3.4/socket.py", line 374, in readinto
    return self._sock.recv_into(b)
File "/home/jespino/Projects/Terceros/guv/guv/greenio.py", line 200, in recv_into
    timeout_exc=s_timeout("timed out"))
File "/home/jespino/Projects/Terceros/guv/guv/greenio.py", line 54, in _trampoline
    raise IOClosed()
guv.exceptions.IOClosed
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/jespino/Projects/Terceros/guv/guv/hubs/pyuv_cffi.py", line 179, in poll_cb
    cb(*cb_args)
File "/home/jespino/Projects/Terceros/guv/guv/greenthread.py", line 151, in main
    result = function(*args, **kwargs)
File "/home/jespino/Projects/Github/locust/locust/runners.py", line 112, in start_locust
    locust().run()
File "/home/jespino/Projects/Github/locust/locust/core.py", line 104, in run
    self.task_set(self).run()
File "/home/jespino/Projects/Github/locust/locust/core.py", line 251, in run
    self.on_start()
File "/home/jespino/Projects/Github/taiga/taiga-extras/load-test/locustfile.py", line 16, in on_start
    response = self.client.get("/api/v1/tasks?project={}".format(self._projects[0].get('id')), headers=self._auth_headers)
File "/home/jespino/.virtualenvs/taiga-tribe/lib/python3.4/site-packages/requests-2.6.0-py3.4.egg/requests/sessions.py", line 476, in get
    return self.request('GET', url, **kwargs)
File "/home/jespino/Projects/Github/locust/locust/clients.py", line 113, in request
    response = self._send_request_safe_mode(method, url, **kwargs)
File "/home/jespino/Projects/Github/locust/locust/clients.py", line 157, in _send_request_safe_mode
    return requests.Session.request(self, method, url, **kwargs)
File "/home/jespino/.virtualenvs/taiga-tribe/lib/python3.4/site-packages/requests-2.6.0-py3.4.egg/requests/sessions.py", line 464, in request
    resp = self.send(prep, **send_kwargs)
File "/home/jespino/.virtualenvs/taiga-tribe/lib/python3.4/site-packages/requests-2.6.0-py3.4.egg/requests/sessions.py", line 613, in send
    r.content
File "/home/jespino/.virtualenvs/taiga-tribe/lib/python3.4/site-packages/requests-2.6.0-py3.4.egg/requests/models.py", line 733, in content
    self._content = bytes().join(self.iter_content(CONTENT_CHUNK_SIZE)) or bytes()
File "/home/jespino/.virtualenvs/taiga-tribe/lib/python3.4/site-packages/requests-2.6.0-py3.4.egg/requests/models.py", line 656, in generate
    for chunk in self.raw.stream(chunk_size, decode_content=True):
File "/home/jespino/.virtualenvs/taiga-tribe/lib/python3.4/site-packages/requests-2.6.0-py3.4.egg/requests/packages/urllib3/response.py", line 273, in stream
    data = self.read(amt=amt, decode_content=decode_content)
File "/home/jespino/.virtualenvs/taiga-tribe/lib/python3.4/site-packages/requests-2.6.0-py3.4.egg/requests/packages/urllib3/response.py", line 203, in read
    data = self._fp.read(amt)
File "/usr/lib64/python3.4/http/client.py", line 500, in read
    return super(HTTPResponse, self).read(amt)
File "/usr/lib64/python3.4/http/client.py", line 539, in readinto
    n = self.fp.readinto(b)
File "/usr/lib64/python3.4/socket.py", line 381, in readinto
    if e.args[0] in _blocking_errnos:
IndexError: tuple index out of range
Exception while removing listener: 'NoneType' object has no attribute 'ref'

[veegee]

Ok, I know how to fix this, but extremely busy with other things at the moment. I'll give it a shot in a ~~couple of~~ few days.

[jespino]

Thanks! :smile:

[veegee]

Can you link me to your fork and script that you're using to test? It would help quite a bit when I start fixing this. Also, I haven't heard of locust before, so I checked it out and it looks nice. A port to Python 3 would be great!

Edit: didn't mean to close the issue. That "comment and close" button is in the worst place it could be. Comment and close shouldn't even be a thing.