old_contents: # -*- coding: utf-8 -*-
  
  import argparse
  import os
  from urllib import request
  
  import flask_reveal
  from flask_reveal.tools.helpers import extract_file, move_and_replace
  
  
  class InstallReveal(argparse.ArgumentParser):
      info = ({
          'prog': 'installreveal',
          'description': 'installs Reveal.js',
      })
  
      def __init__(self):
          super(InstallReveal, self).__init__(**self.info)
  
          self.url = None
          self.path = None
          self.add_argument('-u', '--url', action='store')
          self.add_argument('-p', '--path', action='store')
  
      def parse_args(self, args=None, namespace=None):
          super(InstallReveal, self).parse_args(args, self)
  
          if not self.url and not self.path:
              self.url = 'https://github.com/hakimel/reveal.js/' + \
                         'archive/3.2.0.tar.gz'
  
      def run(self, args=None):
          self.parse_args(args)
  
          if self.url:
              try:
                  response = request.urlretrieve(self.url)
                  self.path = response[0]
              except Exception:
                  raise
  
          move_and_replace(
              extract_file(self.path),
              os.path.join(os.path.dirname(flask_reveal.__file__), 'static/')
          )
  
  command = InstallReveal()
  
new_contents: # -*- coding: utf-8 -*-
  
  import argparse
  import os
  from urllib import request
  
  import flask_reveal
  from flask_reveal.tools.helpers import extract_file, move_and_replace
  
  
  class InstallReveal(argparse.ArgumentParser):
      info = ({
          'prog': 'installreveal',
          'description': 'installs Reveal.js',
      })
  
      def __init__(self):
          super(InstallReveal, self).__init__(**self.info)
  
          self.url = None
          self.path = None
          self.add_argument('-u', '--url', action='store')
          self.add_argument('-p', '--path', action='store')
  
      def parse_args(self, args=None, namespace=None):
          super(InstallReveal, self).parse_args(args, self)
  
          if not self.url and not self.path:
              self.url = ('https://github.com/hakimel/reveal.js/' +
                          'archive/3.3.0.tar.gz')
  
      def run(self, args=None):
          self.parse_args(args)
  
          if self.url:
              try:
                  response = request.urlretrieve(self.url)
                  self.path = response[0]
              except Exception:
                  raise
  
          move_and_replace(
              extract_file(self.path),
              os.path.join(os.path.dirname(flask_reveal.__file__), 'static/')
          )
  
  command = InstallReveal()
  
subject: upgrade reveal to 3.3.0