old_contents: from flask import Flask, Markup
  from flask.ext.login import LoginManager
  from flask.ext.sqlalchemy import SQLAlchemy
  from markdown2 import markdown as md2
  
  app = Flask(__name__)
  app.config.from_object('config')
  
  # Extensions
  
  db = SQLAlchemy(app)
  
  lm = LoginManager(app)
  lm.login_view = 'auth.login'
  lm.login_message = None
  
  
  # Jinja
  
  def date(value):
      """Formats datetime object to a yyyy-mm-dd string."""
      return value.strftime('%Y-%m-%d')
  
  
  def date_pretty(value):
      """Formats datetime object to a Month dd, yyyy string."""
      return value.strftime('%B %d, %Y')
  
  
  def datetime(value):
      """Formats datetime object to a yyyy-mm-dd hh:mm string."""
      return value.strftime('%Y-%m-%d %H:%M')
  
  
  def pluralize(value, one='', many='s'):
      """Returns the plural suffix when needed."""
      return one if abs(value) == 1 else many
  
  
  def month_name(value):
      """Return month name for a month number."""
      from calendar import month_name
      return month_name[value]
  
  
  def markdown(value):
      """Convert plain text to HTML."""
      extras = ['fenced-code-blocks', 'wiki-tables']
      return Markup(md2(value, extras=extras))
  
  
  app.jinja_env.filters['date'] = date
  app.jinja_env.filters['date_pretty'] = date_pretty
  app.jinja_env.filters['datetime'] = datetime
  app.jinja_env.filters['pluralize'] = pluralize
  app.jinja_env.filters['month_name'] = month_name
  app.jinja_env.filters['markdown'] = markdown
  
  from app import views
  
  app.register_blueprint(views.auth)
  app.register_blueprint(views.admin)
  
new_contents: from flask import Flask, Markup
  from flask.ext.login import LoginManager
  from flask.ext.sqlalchemy import SQLAlchemy
  from markdown2 import markdown as md2
  
  app = Flask(__name__)
  app.config.from_object('config')
  
  # Extensions
  
  db = SQLAlchemy(app)
  
  lm = LoginManager(app)
  lm.login_view = 'auth.login'
  lm.login_message = None
  
  
  # Jinja
  
  def date(value):
      """Formats datetime object to a yyyy-mm-dd string."""
      return value.strftime('%Y-%m-%d')
  
  
  def date_pretty(value):
      """Formats datetime object to a Month dd, yyyy string."""
      return value.strftime('%B %d, %Y')
  
  
  def datetime(value):
      """Formats datetime object to a yyyy-mm-dd hh:mm string."""
      return value.strftime('%Y-%m-%d %H:%M')
  
  
  def pluralize(value, one='', many='s'):
      """Returns the plural suffix when needed."""
      return one if abs(value) == 1 else many
  
  
  def month_name(value):
      """Return month name for a month number."""
      from calendar import month_name
      return month_name[value]
  
  
  def markdown(value):
      """Convert plain text to HTML."""
      extras = ['fenced-code-blocks', 'wiki-tables']
      return Markup(md2(value, extras=extras))
  
  
  app.jinja_env.filters['date'] = date
  app.jinja_env.filters['date_pretty'] = date_pretty
  app.jinja_env.filters['datetime'] = datetime
  app.jinja_env.filters['pluralize'] = pluralize
  app.jinja_env.filters['month_name'] = month_name
  app.jinja_env.filters['markdown'] = markdown
  
  
  # Blueprints
  
  from app import views
  
  app.register_blueprint(views.auth)
  app.register_blueprint(views.admin)
  
subject: add comment for blueprints