bootandy

#-------------- Concept: Lambdas & string splits: --------------
TurnSpacesIntoColonsFunction = lambda x: '::'.join(x.split(" "))
NumberOfWordsFunction = lambda x: len(x.split(" "))

#-------------- Concept: lambdas inside a regex --------------

re.sub('[aeiou]', lambda match: match.group().upper()*3, 'abcdefghijklmnopqrstuvwxyz')


#-------------- Concept: crazy function stacking with lambdas --------------

bootandy

class LoadHelper:
    PAGE_SIZE = 10
    """ load objects, ordered by a parameter
        supports next & previous"""
    def loadByString(self, request, order, filter):
        next = request.get('next')
        prev = request.get('prev')

        query = MyObject.all()

bootandy

neighbours = {
    "A":{"B":3,"C":4},
    "B":{"D":2},
    "C":{"D":1,"E":1,"F":6},
    "D":{"H":1},
    "E":{"H":7},
    "F":{"G":1},
    "G":{},
    "H":{"G":3}
}

bootandy

from datetime import datetime
from pymongo.connection import Connection

import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web

from tornado.options import define, options

bootandy

import random

def role():
  return int(random.random() * 6) + 1


def main():
  hits5plus = 0
  hits6 = 0
  roles = 10000

bootandy

from random import random
import time

def main():
  list = [] #[5,6,3,6,8,3,10,0,4]
  for i in range(0, 1000000):
    list.append(int( random() * 1000000000 ) )

  with_reversed(list)
  backwards_xrange(list)

bootandy

How 2 ruby debug:
type debugger in file
on cmd line:

l - print where i am
c - continue
n - step over
e @var - dump @var as tostring()
disp - dump current vars
irb - Interactive Ruby Shell

bootandy

cheat sheet:
http://cheat.errtheblog.com/s/mongo
for more on update see: 
http://www.mongodb.org/display/DOCS/Updating#Updating-update%28%29

======================== DEV ==============================
---search by date:
db.houses.find({"dateadded": { "$gt" : ISODate("2013-01-01")} } )

-- Get by subdocument key field:

bootandy

#Hashes:
 def test_combining_hashes
    hash = { "jim" => 53, "amy" => 20, "dan" => 23 }
    new_hash = hash.merge({ "jim" => 54, "jenny" => 26 })

def default_value_hash
    hash2 = Hash.new("default")
    hash2[:one] = 1

    assert_equal 1, hash2[:one]

bootandy

Had trouble with mod_wsgi and virtual env.

You need to build mod_wsgi yourself or ubuntu will use your default python.
You also need to install the python dev tools (specify the python version).
sudo apt-get install python2.6-dev

source: http://helloit.es/2011/05/mod_wsgi-en-apache/