Completely disable grequests logging

How would I suppress the following debugging error messages I'm getting from grequests?

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/gevent/greenlet.py", line 327, in run
    result = self._run(*self.args, **self.kwargs)
  File "/usr/local/lib/python2.7/dist-packages/grequests.py", line 71, in send
    self.url, **merged_kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 456, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 559, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/adapters.py", line 384, in send
    raise Timeout(e, request=request)
Timeout: HTTPSConnectionPool(host='itunes.apple.com', port=443): Read timed out.
<Greenlet at 0x7ff0c8165910: <bound method AsyncRequest.send of <grequests.AsyncRequest object at 0x7ff0c880b8d0>>(stream=False)> failed with Timeout

Here is what I've tried so far:

# disable requests/grequests logging
logging.getLogger("requests").setLevel(logging.CRITICAL)
logging.getLogger("grequests").setLevel(logging.CRITICAL)
logging.getLogger("urllib3").setLevel(logging.CRITICAL)
logging.getLogger("gevent").setLevel(logging.CRITICAL)

The error occurs here:

rs = (grequests.get(url, headers=headers, cookies=cookies, proxies=proxies, timeout=timeout) for url in urls)
res_items = grequests.map(rs) # <-- this command produces all the errors

I am getting literally thousands of these messages, which I don't want to see. I am also using log.debug in a lot of other places so don't want to change the debugging level program-wide. How would I suppress only the grequests debugging messages?

Solution

For this you need to do three things:

(1) Make sure you have the most recent version of grequests installed:

sudo pip install git+https://github.com/kennethreitz/grequests.git

(2) Have a handler for the grequests.map function:

def exception_handler(request, exception):
    pass # suppress errors on grequests.map

res_items = grequests.map(rs, exception_handler=exception_handler)

(3) Suppress the urllib3 warnings:

import urllib3
urllib3.disable_warnings()
logging.captureWarnings(True)

Now, there shouldn't be any more warnings coming from grequests.