pzelnip

import random
import timeit
from copy import deepcopy

def inter_reduce(sets):
    return reduce(set.intersection, sets)

def inter_for_deepcopy(sets):
    sets = iter(sets)
    result = deepcopy(next(sets))

pzelnip

class ComparableMixin:
    def __eq__(self, other):
        return not (self < other or other < self)

    def __le__(self, other):
        return not other < self

class Foo(ComparableMixin):
    def __init__(self, val):
        self.val = val

pzelnip

'''
Example showing that isinstance checks are faster than doing a "it's better to ask for forgiveness than
permission approach.
'''

from timeit import Timer

# Silly timing code that can be ignored
def timeruns(runs, num_iterations = 100):
    return [(label, Timer(cmd, imports).timeit(num_iterations))

pzelnip

from timeit import Timer

if __name__ == "__main__":
    setup = 'x = list(range(100000))'
    num_iter = 1000
    print(Timer('sum(1 for item in x if item % 2 == 0)', setup).timeit(num_iter))
    print(Timer('len([item for item in x if item % 2 == 0])', setup).timeit(num_iter))

# prints (on my machine):
# 12.4215...

pzelnip

import java.util.ArrayList;
import java.util.List;


public class TestTest implements Runnable {

    public static void main(String [] args) throws InterruptedException {
        List<Thread> threads = new ArrayList<Thread>();
        
        for (int x = 0; x < 10; x++) {

pzelnip

import sys

lines = []

for i in range(1, len(sys.argv)):
    lines.append("================================== START OF sys.argv%s==========================\n" % i)
    with open(sys.argv[i]) as fobj:
        for line in fobj:
            lines.append(line.decode('utf-8'))
    lines.append("================================== END OF sys.argv%s==========================\n" % i)        

pzelnip

    private static File tmpDir;
    
    @BeforeClass
    public static void setUp() {
        String dirname = UUID.randomUUID().toString().replace("-", "");
        tmpDir = new File(System.getProperty("java.io.tmpdir"), dirname);
        if (!tmpDir.exists()) {
            tmpDir.mkdir();
        }
    }

pzelnip

    <mx:DataGrid id="myGrid" 
                 editable="true" 
                 itemEditBeginning="disableEditing(event)">
                 
                 <!-- definition of columns & such here -->
    </mx:DataGrid>

pzelnip

<?xml version="1.0"?>
<!-- itemRenderers\events\EndEditEventPreventEdit.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx"
               initialize="init()">
    
    <fx:Script>
        <![CDATA[
            import mx.collections.ArrayCollection;

pzelnip

iTerm2 – Useful Shortcuts (Mac OS X)

with a hat tip to Sublime Text 2 Shortcuts

The Awesome

⌘;	autocomplete
⌘⌥B	instant replay
⌘⌥E	search across all tabs