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Django in / not in query
I'm trying to figure out how to write a 'not in' style query in django.
For example, the query structure I'm thinking of would look like this.
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urlencode vs rawurlencode?
...he one exception is legacy systems which expect the query string to follow form-encoding style of spaces encoded as + instead of %20 (in which case you need urlencode).
rawurlencode follows RFC 1738 prior to PHP 5.3.0 and RFC 3986 afterwards (see http://us2.php.net/manual/en/function.rawurlencode.p...
Why does changing 0.1f to 0 slow down performance by 10x?
...me to the world of denormalized floating-point! They can wreak havoc on performance!!!
Denormal (or subnormal) numbers are kind of a hack to get some extra values very close to zero out of the floating point representation. Operations on denormalized floating-point can be tens to hundreds of times ...
Simplest way to detect a mobile device in PHP
...ng. Tested in IOS 8.1 using Chrome's mobile browser. Justin's is working for me though.
– James
Aug 27 '15 at 17:04
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What is the difference between lock and Mutex?
...c to the AppDomain, while Mutex to the Operating System allowing you to perform inter-process locking and synchronization (IPC).
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Get a random boolean in python?
I am looking for the best way (fast and elegant) to get a random boolean in python (flip a coin).
8 Answers
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How to encrypt/decrypt data in php?
...I made some online research and some of them were quite confusing(at least for me).
6 Answers
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Disable migrations when running unit tests in Django 1.7
...models just
like syncdb did in 1.6. I defined a new settings module just for unit
tests called "settings_test.py", which imports * from the main
settings module and adds this line:
MIGRATION_MODULES = {"myapp": "myapp.migrations_not_used_in_tests"}
Then I run tests like this:
DJ...
Why use def main()? [duplicate]
...ng this if, we can make Python behave like them, which feels more familiar for many people.
Code will be cleaner, easier to read, and better organized. (yeah, I know this is subjective)
It will be possible to import that python code as a module without nasty side-effects.
This means it will be po...
How to implement an STL-style iterator and avoid common pitfalls?
I made a collection for which I want to provide an STL-style, random-access iterator. I was searching around for an example implementation of an iterator but I didn't find any. I know about the need for const overloads of [] and * operators. What are the requirements for an iterator to be "STL-s...