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How to expire session due to inactivity in Django?
...ession is expired. something like this should handle the whole process...
from datetime import datetime
from django.http import HttpResponseRedirect
class SessionExpiredMiddleware:
def process_request(request):
last_activity = request.session['last_activity']
now = datetime.now...
Increasing the maximum number of TCP/IP connections in Linux
...ort range defines the maximum number of outbound sockets a host can create from a particular I.P. address. The fin_timeout defines the minimum time these sockets will stay in TIME_WAIT state (unusable after being used once).
Usual system defaults are:
net.ipv4.ip_local_port_range = 32768 61000
n...
fork() branches more than expected?
...However, what printf() really does is buffer its output. So the first dot from when there were only two processes does not appear when written. Those dots remain in the buffer—which is duplicated at fork(). It is not until the process is about to exit that the buffered dot appears. Four proces...
string.charAt(x) or string[x]?
...
From MDN:
There are two ways to access an individual character in a string. The first is the charAt method, part of ECMAScript 3:
return 'cat'.charAt(1); // returns "a"
The other way is to treat the string as an ar...
How to get a variable value if variable name is stored as string?
...evel of variable indirection. Bash uses the value of the
variable formed from the rest of parameter as the name of the
variable; this variable is then expanded and that value is used in the
rest of the substitution, rather than the value of parameter itself.
...
redis-py : What's the difference between StrictRedis() and Redis()?
...tRedis.
2017-03-31
Here are the specifics of the backwards compatibility, from the github.com link cited:
In addition to the changes above, the Redis class, a subclass of StrictRedis, overrides several other commands to provide backwards compatibility with older versions of redis-py:
LREM: Order o...
Add alternating row color to SQL Server Reporting services report
...*******
' -- Display green-bar type color banding in detail rows
' -- Call from BackGroundColor property of all detail row textboxes
' -- Set Toggle True for first item, False for others.
'*************************************************************************
Function AlternateColor(ByVal OddColo...
Asynchronous Requests with Python requests
...request
Call async.map on a list of all the requests / actions
Example:
from requests import async
# If using requests > v0.13.0, use
# from grequests import async
urls = [
'http://python-requests.org',
'http://httpbin.org',
'http://python-guide.org',
'http://kennethreitz.com'...
NameError: name 'reduce' is not defined in Python
...
You can add
from functools import reduce
before you use the reduce.
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Reading an Excel file in python using pandas
...
How do you prevent it from turning the first row into headers? I've tried using the parameter headers=Nonebut while it didn't break the code, it didn't work either.
– Elliptica
Jul 23 '16 at 1:03
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