old_contents: # This file is part of python-markups module
  # License: BSD
  # Copyright: (C) Dmitry Shachnev, 2012-2015
  
  import os.path
  
  # Some common constants and functions
  (LANGUAGE_HOME_PAGE, MODULE_HOME_PAGE, SYNTAX_DOCUMENTATION) = range(3)
  CONFIGURATION_DIR = (os.getenv('XDG_CONFIG_HOME') or os.getenv('APPDATA') or
  	os.path.expanduser('~/.config'))
  MATHJAX_LOCAL_URL = 'file:///usr/share/javascript/mathjax/MathJax.js'
  MATHJAX_WEB_URL = 'https://cdn.mathjax.org/mathjax/latest/MathJax.js'
  
  PYGMENTS_STYLE = 'default'
  
  def get_pygments_stylesheet(selector, style=None):
  	if style is None:
  		style = PYGMENTS_STYLE
  	if style == '':
  		return ''
  	try:
  		from pygments.formatters import HtmlFormatter
  	except ImportError:
  		return ''
  	else:
  		return HtmlFormatter(style=style).get_style_defs(selector) + '\n'
  
  def get_mathjax_url(webenv):
  	if os.path.exists(MATHJAX_LOCAL_URL[7:]) and not webenv:
  		return MATHJAX_LOCAL_URL
  	else:
  		return MATHJAX_WEB_URL
  
new_contents: # This file is part of python-markups module
  # License: BSD
  # Copyright: (C) Dmitry Shachnev, 2012-2015
  
  import os.path
  
  # Some common constants and functions
  (LANGUAGE_HOME_PAGE, MODULE_HOME_PAGE, SYNTAX_DOCUMENTATION) = range(3)
  CONFIGURATION_DIR = (os.getenv('XDG_CONFIG_HOME') or os.getenv('APPDATA') or
  	os.path.expanduser('~/.config'))
  MATHJAX_LOCAL_URL = 'file:///usr/share/javascript/mathjax/MathJax.js'
  MATHJAX_WEB_URL = 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js'
  
  PYGMENTS_STYLE = 'default'
  
  def get_pygments_stylesheet(selector, style=None):
  	if style is None:
  		style = PYGMENTS_STYLE
  	if style == '':
  		return ''
  	try:
  		from pygments.formatters import HtmlFormatter
  	except ImportError:
  		return ''
  	else:
  		return HtmlFormatter(style=style).get_style_defs(selector) + '\n'
  
  def get_mathjax_url(webenv):
  	if os.path.exists(MATHJAX_LOCAL_URL[7:]) and not webenv:
  		return MATHJAX_LOCAL_URL
  	else:
  		return MATHJAX_WEB_URL
  
subject: Update MathJax CDN address