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What is the difference between old style and new style classes in Python?
...(x) is always <type
'instance'>.
This reflects the fact that all old-style instances, independently of
their class, are implemented with a single built-in type, called
instance.
New-style classes were introduced in Python 2.2 to unify the concepts of class and type.
A new-s...
How do I expire a PHP session after 30 minutes?
...ms with filesystems where atime tracking is not available.
So it additionally might occur that a session data file is deleted while the session itself is still considered as valid because the session data was not updated recently.
And second:
session.cookie_lifetime
session.cookie_lifetime ...
How to permanently export a variable in Linux?
...an add it to your shell configuration file, e.g. $HOME/.bashrc or more globally in /etc/environment.
After adding these lines the changes won't reflect instantly in GUI based system's you have to exit the terminal or create a new one and in server logout the session and login to reflect these change...
How to create an HTML button that acts like a link?
... type="submit">. The only difference is that the <button> element allows children.
You'd intuitively expect to be able to use <button href="https://google.com"> analogous with the <a> element, but unfortunately no, this attribute does not exist according to HTML specification.
...
The required anti-forgery form field “__RequestVerificationToken” is not present Error in user Regis
...rs typing http were getting this error, putting in a rewrite rule to force all to https://{HTTP_HOST}/{R:1} fixed it
– user1069816
Mar 24 '16 at 15:30
...
File Upload ASP.NET MVC 3.0
...maxRequestLength="x" /> in your web.config, where x is the number of KB allowed for upload.
– rsbarro
May 22 '11 at 20:33
86
...
Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...doThisMostOfTheTime)()
...looks like it ought to be faster, but it's actually slower than the if ... elif ... else construct, because it has to call a function, which can be a significant performance overhead in a tight loop.
Consider these examples...
1.py
something = 'something'
for i in xra...
Android - Set fragment id
...
You can't set a fragment's ID programmatically.
There is however, a String tag that you can set inside the FragmentTransaction which can be used to uniquely identify a Fragment.
As Aleksey pointed out, you can pass an ID to FragmentTransaction's add(int, Fragment) ...
What to do Regular expression pattern doesn't match anywhere in string?
...
Contrary to all the answers here, for what you're trying to do regex is a perfectly valid solution. This is because you are NOT trying to match balanced tags-- THAT would be impossible with regex! But you are only matching what's in one ...
External template in Underscore
...nstead.
I wouldn't advocate doing this anymore. Instead, I would separate all templates into individual HTML files. Some would suggest loading these asynchronously (Require.js or a template cache of sorts). That works well on small projects but on large projects with lots of templates, you find y...