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How to install MySQLdb (Python data access library to MySQL) on Mac OS X?
... have MySQL, Python, and GCC installed on the mac.
Step 1:
Download the latest MySQL for Python adapter from SourceForge.
Step 2:
Extract your downloaded package:
tar xzvf MySQL-python-1.2.2.tar.gz
Step 3:
Inside the folder, clean the package:
sudo python setup.py clean
COUPLE OF EXTRA STEPS...
Why isn't SQL ANSI-92 standard better adopted over ANSI-89?
... by Peter Gulutzan and Trudy Pelzer, of the six or eight RDBMS brands they tested, there was no difference in optimization or performance of SQL-89 versus SQL-92 style joins. One can assume that most RDBMS engines transform the syntax into an internal representation before optimizing or executing t...
Getting the closest string match
I need a way to compare multiple strings to a test string and return the string that closely resembles it:
12 Answers
...
Why does this Java code compile?
...ferent. So this answer will tackle the rules in two parts.
We'll use this test program throughout:
public class test {
int a = a = 1;
int b = b + 1;
public static void Main(String[] args) {
int c = c = 1;
int d = d + 1;
}
}
The declaration of b is invalid and fail...
Why is creating a Thread said to be expensive?
...0.38 us
Time for a task to complete in the same thread 0.08 us
This is a test for a trivial task which exposes the overhead of each threading option. (This test task is the sort of task that is actually best performed in the current thread.)
final BlockingQueue<Integer> queue = new LinkedBl...
Getting multiple keys of specified value of a generic Dictionary?
...n new List<TFirst>(list); // Create a copy for sanity
}
}
class Test
{
static void Main()
{
BiDictionary<int, string> greek = new BiDictionary<int, string>();
greek.Add(1, "Alpha");
greek.Add(2, "Beta");
greek.Add(5, "Beta");
Sho...
Technically, why are processes in Erlang more efficient than OS threads?
...g processes. The author of Programming Erlang, Joe Armstrong, a while back tested the scalability of the spawning of Erlang processes to OS threads. He wrote a simple web server in Erlang and tested it against multi-threaded Apache (since Apache uses OS threads). There's an old website with the data...
Can a C# class inherit attributes from its interface?
...<T>())
yield return attribute;
}
}
Barebones NUnit test
[TestFixture]
public class GetAttributesTest
{
[AttributeUsage(AttributeTargets.All, AllowMultiple = true, Inherited = true)]
private sealed class A : Attribute
{
// default equality for Attributes i...
Node.js + Nginx - What now?
..., "127.0.0.1");
console.log('Server running at http://127.0.0.1:3000/');
Test for syntax mistakes:
nginx -t
Restart nginx:
sudo /etc/init.d/nginx restart
Lastly start the node server:
cd /var/www/yourdomain/ && node app.js
Now you should see "Hello World" at yourdomain.com
One la...
What is the difference between up-casting and down-casting with respect to class variable
... is where is should introduce an useful feature called "instanceof", which tests if an object is instance of some Class.
Cat c1 = new Cat();
Animal a = c1; //upcasting to Animal
if(a instanceof Cat){ // testing if the Animal is a Cat
System.out.println("It's a Cat! N...