for range to send post request by using requests.Session(), it alert 'module' object has no attribute 'kqueue'

Question

macOS 10.12.3 python 2.7.13 requests 2.13.0
I use requests package to send post request.This request need to login before post data.So I use request.Session() and load a logined cookie. Then I use this session to send post data in cycle mode.
It is no error that I used to run this code in Windows and Linux.
Simple Code:

s = request.Session()
s.cookies = cookieslib.LWPCookieJar('cookise')
s.cookies.load(ignore_discard=True)
for user_id in range(100,200):
    url = 'http://xxxx'
    data = { 'user': user_id, 'content': '123'}
    r = s.post(url, data)
    ...

But the program frequently (about every interval) crash, the error isAttributeError: 'module' object has no attribute 'kqueue'

Traceback (most recent call last):
  File "/Users/gasxia/Dev/Projects/TgbookSpider/kfz_send_msg.py", line 90, in send_msg
    r = requests.post(url, data)  # catch error if user isn't exist
  File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 535, in post
    return self.request('POST', url, data=data, json=json, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 488, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 609, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/requests/adapters.py", line 423, in send
    timeout=timeout
  File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/connectionpool.py", line 588, in urlopen
    conn = self._get_conn(timeout=pool_timeout)
  File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/connectionpool.py", line 241, in _get_conn
    if conn and is_connection_dropped(conn):
  File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/util/connection.py", line 27, in is_connection_dropped
    return bool(wait_for_read(sock, timeout=0.0))
  File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/util/wait.py", line 33, in wait_for_read
    return _wait_for_io_events(socks, EVENT_READ, timeout)
  File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/util/wait.py", line 22, in _wait_for_io_events
    with DefaultSelector() as selector:
  File "/usr/local/lib/python2.7/site-packages/requests/packages/urllib3/util/selectors.py", line 431, in __init__
    self._kqueue = select.kqueue()
AttributeError: 'module' object has no attribute 'kqueue'

Are you using anything like eventlet, gevent, or something else that might replace the stdlib `select` module? — Ian Stapleton Cordasco, Feb 08 '17 at 19:44
@sigmavirus24 Thanks, you are right. I really install gevent. I know what is key point now because your help. — 3Chimenea, Feb 09 '17 at 07:33
Just to be clear, you need to make sure gevent monkey-patches things before you import requests. — Ian Stapleton Cordasco, Feb 09 '17 at 12:35

score 1 · Answer 1 · answered Feb 08 '17 at 19:42

1

This looks like a problem that commonly arises if you're using something like eventlet or gevent, both of which monkeypatch the select module. If you're using those to achieve asynchrony, you will need to ensure that those monkeypatches are applied before importing requests. This is a known bug, being tracked in this issue.

answered Feb 08 '17 at 19:42

Lukasa

14,599
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Thanks for your help. The problem is like what your said. And I'll try to read the issue and resolve it. – 3Chimenea Feb 09 '17 at 07:38

for range to send post request by using requests.Session(), it alert 'module' object has no attribute 'kqueue'

1 Answers1