michaelkrisper

    public static class ExtensionOperations
    {
        public static T[] ForEach<T>(this T[] items, Action<T, int> action)
        {
            for (var i = 0; i < items.Length; i++)
                action(items[i], i);
            return items;
        }

        public static T[] ForEach<T>(this T[] items, Action<T> action)

michaelkrisper

michaelkrisper

####################################################################
# Monkey Patch urllib2.urlopen for caching #########################
import shelve
import urllib2
__default_urlopen = urllib2.urlopen
def __urlopen(url):
	db = shelve.open("tmp.db")
	if url not in db:
		db[url] = __default_urlopen(url).read()
	result = db[url]

michaelkrisper

# Compute the Powerset of a list
# items = [1, 2]
# powerset = [[], [1], [2], [1, 2]]
import itertools

items = [1, 2, 3, 4]
powerset = [x for length in range(len(items)+1) for x in itertools.combinations(items, length)]

michaelkrisper