python-memcached | A python memcached client library | Database library

I have a race condition in Celery. Inspired by this - http://ask.github.io/celery/cookbook/tasks.html#ensuring-a-task-is-only-executed-one-at-a-time I decided to use memcache to add locks to my tasks.

These are the changes I made:

I'm in the process of upgrading from Django 1.11 and Wagtail 2.0 to latest versions of both. Everything seems to be working except when I try to edit or create one specific page type I get a Django error

Here is the full error: The request's session was deleted before the request completed. The user may have logged out in a concurrent request, for example.

I am using python-memcached with my sessions using my cache. Every few days I get one of these errors. Its thrown by an UpdateError on request.session.save(). It comes from line 60 in sessions/middleware.py. 99% of the time everything works normally. I have seen this error at many different URLs for GET and POST requests. Users report that they are not clicking the logout button. They are also reporting that this happens 5 minutes after logging in, so their sessions are not expiring. I have 0 evictions on my cache for over a month it has been running. If I Google this error, it looks like no one has ever gotten it before.

I think the connections to memcached might be closing for some reason. Its running on localhost. The only other time I saw this error is when I set my cache config to a server that had memcached running but it was not listening on that interface. That would generate this exact exception on every request. So is there some way that memcache is refusing to listen for a second or two or dropping connections?

Here are my settings:

I'm migrating a project to python on docker for a better "facility" for development. Ut's a project that runs with python 2.7, Django 1.6.8 and several RPC dependencies

I find myself with a crash of the application with this stacktrace that I can't find the missing module (No module named coros).

I'm thinking it should either be an addiction problem related to a version that is not good or an addiction installed on the default bone but not on the docker bone. Do you have any ideas or suggestions to correct this problem?

My Dockerfile

Is there a way to reload the code without restarting Zope when in Production ? New features are implemented almost once in 2 days and have to be uploaded to the server. The only way it works currently is by restarting the zeo server and all instances. Can't use "plone.reload" as it only works in the development environment when the debug mode is on. Below is the buildout.cfg content

How do I connect to Python-memcached using the path to memcached.sock? (Python 2.7)

Memcached comes pre-installed on my host (Webfaction). I have started it and verified that it is running. I also verified that memcached.sock is in my home directory. The documentation says:

"Once your Memcached instance is up and running, you can access it by the path of the socket file (~/memcached.sock) with the software or library which uses memcached."

I have tried this:

Recently I'm implementing WebSocket support in my Flask app.

Setup looks as follow: 1. Python 2.7 2. Flask + Flask-SocketIo 3. SocketIO (Client side) 4. NGINX as proxy 5. uWSGI 2.0.13 + it's WebSocket with Gevent (Monkey-patched)

I've manage to enable socket connection but I'm struggling on synchronization of emits between UWSGI Workers, single mule especially.

I have dedicated UWSGI mule to monit some stuff and reports the state every 30 secs, broadcasting it to connected clients. If I allow my task to run on any available worker (not only mule dedicated) emit reaches only to client that was previously server by exact same process e.g: Client request was served by Worker #6 with (400 PID) and established Socket connection. Later one mule task was served by very the same Worker so client received the Emit) If any other worker processed that task, emit is not cached by Client.

With single worker mode everything works fine, but that is obviously not acceptable solution.

Here is some tech details: uwsgi.ini

I just got a new computer, and now a bunch of my python scripts dont work because they return the following error:

I'm using Python and I'm trying to scrape this website: https://online.ratb.ro/info/browsers.aspx

But I'm getting this error:

Traceback (most recent call last):
File "C:\Users\pinguluk\Desktop\Proiecte GIT\RATB Scraper\test2.py", line 3, in
test = requests.get('https://online.ratb.ro/info/browsers.aspx')
File "C:\Python27\lib\site-packages\requests\api.py", line 72, in get
return request('get', url, params=params, **kwargs)
File "C:\Python27\lib\site-packages\requests\api.py", line 58, in request
return session.request(method=method, url=url, **kwargs)
File "C:\Python27\lib\site-packages\requests\sessions.py", line 518, in request
resp = self.send(prep, **send_kwargs)
File "C:\Python27\lib\site-packages\requests\sessions.py", line 639, in send
r = adapter.send(request, **kwargs)
File "C:\Python27\lib\site-packages\requests\adapters.py", line 512, in send
raise SSLError(e, request=request)
requests.exceptions.SSLError: ("bad handshake: SysCallError(-1, 'Unexpected EOF')",)

Installed modules:

['appdirs==1.4.3', 'asn1crypto==0.22.0', 'attrs==16.3.0', 'automat==0.5.0', 'beautifulsoup4==4.5.3', 'cairocffi==0.8.0', 'certifi==2017.4.17', 'cffi==1.10.0', 'colorama==0.3.9', 'constantly==15.1.0', 'cryptography==1.8.1', 'cssselect==1.0.1', 'cycler==0.10.0', 'distributedlock==1.2', 'django-annoying==0.10.3', 'django-oauth-tokens==0.6.3', 'django-taggit==0.22.1', 'django==1.11.1', 'enum34==1.1.6', 'facepy==1.0.8', 'functools32==3.2.3.post2', 'futures==3.1.1', 'gevent==1.2.1', 'greenlet==0.4.12', 'grequests==0.3.0', 'html5lib==0.999999999', 'htmlparser==0.0.2', 'httplib2==0.10.3', 'idna==2.5', 'incremental==16.10.1', 'ipaddress==1.0.18', 'lazyme==0.0.10', 'lxml==3.7.3', 'matplotlib==2.0.2', 'mechanize==0.3.3', 'ndg-httpsclient==0.4.2', 'numpy==1.12.1', 'oauthlib==2.0.2', 'olefile==0.44', 'opencv-python==3.2.0.7', 'packaging==16.8', 'parsel==1.1.0', 'pillow==4.0.0', 'pip==9.0.1', 'py2exe==0.6.9', 'pyandoc==0.0.1', 'pyasn1-modules==0.0.8', 'pyasn1==0.2.3', 'pycairo-gtk==1.10.0', 'pycparser==2.17', 'pygtk==2.22.0', 'pyhook==1.5.1', 'pynput==1.3.2', 'pyopenssl==17.0.0', 'pyparsing==2.2.0', 'pypiwin32==219', 'pyquery==1.2.17', 'python-dateutil==2.6.0', 'python-memcached==1.58', 'pytz==2017.2', 'pywin32==221', 'queuelib==1.4.2', 'requests-futures==0.9.7', 'requests-oauthlib==0.8.0', 'requests-toolbelt==0.8.0', 'requests==2.14.2', 'restclient==0.11.0', 'robobrowser==0.5.3', 'selenium==3.4.1', 'service-identity==16.0.0', 'setuptools==35.0.2', 'simplejson==3.10.0', 'six==1.10.0', 'twitter==1.17.0', 'twitterfollowbot==2.0.2', 'urllib3==1.21.1', 'w3lib==1.17.0', 'webencodings==0.5.1', 'werkzeug==0.12.1', 'wheel==0.29.0', 'zope.interface==4.3.3']

Thanks.