nvie

from mongoengine import *
from mongoengine import DENY, CASCADE, NULLIFY, DO_NOTHING
from mongoengine import DeleteForbidden  # or something equivalent
from mongoengine.queryset import QuerySet


class Post(Document):
    title = StringField()

    @classmethod

nvie

>>>True,False=False,True
>>>False
True
>>>1==2
False
>>>(1==2)==True
True

>>> # This shows how setting True/False is nothing more than a simple (yet scary!)
>>> # variable assignment in the local scope:

nvie

require 'formula'

class GitFlow <Formula
  url 'git://github.com/nvie/gitflow.git'
  version '0.2'
  homepage 'http://github.com/nvie/gitflow'
  md5 'da3d5ff107f8fec1dad9aa3c0bc357a3'
  
  depends_on 'git'
  

nvie

class Foo:
  x = {}
  
  def __init__(self, id):
    self.x = { id: id }

f1 = Foo(5)
print f1.x     # { 5:5 }, as expected
f2 = Foo(6)
print f2.x     # { 6:6 }, as expected

nvie

class Bar:
  x = {}

print Bar.x     # {}

nvie

class Foo:
  x = 3

  def __init__(self, id):
    self.x = id

f1 = Foo(5)
print f1.x     # 5, as expected
f2 = Foo(6)
print f2.x     # 6, as expected

nvie

print f1.x     # {5:5,6:6}, too!

nvie

class Foo:
  x = {}
  
  def __init__(self, id):
    self.x[id] = id

f1 = Foo(5)
print f1.x     # {5:5}, as expected
f2 = Foo(6)
print f2.x     # {5:5,6:6} ?!

nvie

#Newbie programmer
def factorial(x):
    if x == 0:
        return 1
    else:
        return x * factorial(x - 1)
print factorial(6)


#First year programmer, studied Pascal

nvie

# http://henrik.nyh.se/2008/12/git-dirty-prompt
# http://www.simplisticcomplexity.com/2008/03/13/show-your-git-branch-name-in-your-prompt/
#   username@Machine ~/dev/dir[master]$   # clean working directory
#   username@Machine ~/dev/dir[master*]$  # dirty working directory

function parse_git_dirty {
  [[ $(git status 2> /dev/null | tail -n1) != "nothing to commit (working directory clean)" ]] && echo "*"
}
function parse_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/[\1$(parse_git_dirty)]/"