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What's a good rate limiting algorithm?
I could use some pseudo-code, or better, Python. I am trying to implement a rate-limiting queue for a Python IRC bot, and it partially works, but if someone triggers less messages than the limit (e.g., rate limit is 5 messages per 8 seconds, and the person triggers only 4), and the next trigger is ...
How can I determine whether a 2D Point is within a Polygon?
...k giving some detailed analysis: www-ma2.upc.es/geoc/Schirra-pointPolygon.pdf
– Mikola
May 6 '14 at 4:29
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Why do I get AttributeError: 'NoneType' object has no attribute 'something'?
...just assigned None to mylist. If you next try to do, say, mylist.append(1) Python will give you this error.
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Refreshing web page by WebDriver when waiting for specific condition
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In Python there is a method for doing this: driver.refresh(). It may not be the same in Java.
Alternatively, you could driver.get("http://foo.bar");, although I think the refresh method should work just fine.
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Removing cordova plugins from the project
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I do it with this python one-liner:
python -c "import subprocess as sp;[sp.call('cordova plugin rm ' + p.split()[0], shell=True) for p in sp.check_output('cordova plugin', shell=True).split('\n') if p]"
Obviously it doesn't handle any sort ...
How do I implement basic “Long Polling”?
...his, but it is recommended to write a "long-poll server" in something like Python's twisted, which does not rely on one thread per request. cometD is an popular one (which is available in several languages), and Tornado is a new framework made specifically for such tasks (it was built for FriendFeed...
Output first 100 characters in a string
Can seem to find a substring function in python.
8 Answers
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Redis command to get all available keys?
...re a Redis command for fetching all keys in the database? I have seen some python-redis libraries fetching them. But was wondering if it is possible from redis-client.
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Where can I find the error logs of nginx, using FastCGI and Django?
...log/nginx/
Passenger – /var/app/support/logs/
Puma – /var/log/puma/
Python – /opt/python/log/
Tomcat – /var/log/tomcat8
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Find region from within an EC2 instance
...f you want to avoid regular expression, here's a one-liner you can do with Python:
curl -s http://169.254.169.254/latest/dynamic/instance-identity/document | python -c "import json,sys; print json.loads(sys.stdin.read())['region']"
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