new_contents: # -*- coding: utf-8 -*-
  
  """Library patches."""
  
  import logging
  logger = logging.getLogger(__name__)
  
  import sys
  
  from beaker import cache
  from beaker.util import coerce_cache_params
  from pyramid import mako_templating
  
  def templateLookupFactory(settings):
      """Use the ``settings`` to return a patched ``TemplateLookup`` class."""
      
      class TemplateLookup(mako_templating.PkgResourceTemplateLookup):
          """Sets ``cache_args`` if not passed into the lookup constructor."""
      
          def __init__(self, *args, **kwargs):
              """Patch ``kwargs['cache_args']``."""
              
              if not 'cache_args' in kwargs:
                  # Read the ``cache.*`` ones into ``cache_args``.
                  cache_args = {}
                  prefix = 'mako.cache_args.'
                  for key in settings.keys():
                      if key.startswith(prefix):
                          name = key.split(prefix)[1].strip()
                          value = settings[key]
                          try:
                              value = value.strip()
                          except AttributeError:
                              pass
                          cache_args[name] = value
                  coerce_cache_params(cache_args)
                  cache_args['timeout'] = cache_args.get('expire')
                  kwargs['cache_args'] = cache_args
              super(TemplateLookup, self).__init__(*args, **kwargs)
          
      
      return TemplateLookup
  
  
  def patch_all(settings):
      """Run all the patches."""
      
      # Patch ``mako.lookup.TemplateLookup`` to be our ``TemplateLookup`` class.
      mako_templating.PkgResourceTemplateLookup = templateLookupFactory(settings)
  
  
subject: add module to patch mako config.