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How Python web frameworks, WSGI and CGI fit together
I have a Bluehost account where I can run Python scripts as CGI. I guess it's the simplest CGI, because to run I have to define the following in .htaccess :
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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?
... instantiate an instance of your timer in IB simply drag out a UIView drop it on your view controller's view, and set it's class to your timer's class name.
Remember to #import your timer class in your view controller.
Edit: for IB design (for code instantiation see revision history)
I'm not ve...
A free tool to check C/C++ source code against a set of coding standards? [closed]
It looks quite easy to find such a tool for Java ( Checkstyle , JCSC ), but I can't seem to find one for C/C++. I am not looking for a lint-like static code analyzer, I only would like to check against coding standards like variable naming, capitalization, spacing, identation, bracket placement, an...
Split value from one field to two
...bername which contains both the last name and the first name of users. Is it possible to split those into 2 fields memberfirst , memberlast ?
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Releasing memory in Python
...arena will not be released. In Python 3.3 the small object allocator was switched to using anonymous memory maps instead of the heap, so it should perform better at releasing memory.
Additionally, the built-in types maintain freelists of previously allocated objects that may or may not use the smal...
Java URL encoding of query string parameters
...that spaces in query parameters are represented by +, not %20, which is legitimately valid. The %20 is usually to be used to represent spaces in URI itself (the part before the URI-query string separator character ?), not in query string (the part after ?).
Also note that there are three encode() me...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...ey) DO UPDATE (and ON CONFLICT (key) DO NOTHING), i.e. upsert.
Comparison with ON DUPLICATE KEY UPDATE.
Quick explanation.
For usage see the manual - specifically the conflict_action clause in the syntax diagram, and the explanatory text.
Unlike the solutions for 9.4 and older that are given below, ...
Listing all permutations of a string/integer
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First of all: it smells like recursion of course!
Since you also wanted to know the principle, I did my best to explain it human language. I think recursion is very easy most of the times. You only have to grasp two steps:
The first step
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Using emit vs calling a signal as if it's a regular function in Qt
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emit is just syntactic sugar. If you look at the pre-processed output of function that emits a signal, you'll see emit is just gone.
The "magic" happens in the generated code for the signal emitting function, which you can loo...
java.util.regex - importance of Pattern.compile()?
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The compile() method is always called at some point; it's the only way to create a Pattern object. So the question is really, why should you call it explicitly? One reason is that you need a reference to the Matcher object so you can use its methods, like group(int) to retrie...