parameters: ()
docstring: Prepare the master working set and make the ``require()``
      API available.
  
      This function has explicit effects on the global state
      of pkg_resources. It is intended to be invoked once at
      the initialization of this module.
  
      Invocation by other packages is unsupported and done
      at their own risk.
docstring_summary: Prepare the master working set and make the ``require()``
      API available.
docstring_tokens: Prepare the master working set and make the require () API available .
function: def _initialize_master_working_set():
      """
      Prepare the master working set and make the ``require()``
      API available.
  
      This function has explicit effects on the global state
      of pkg_resources. It is intended to be invoked once at
      the initialization of this module.
  
      Invocation by other packages is unsupported and done
      at their own risk.
      """
      working_set = WorkingSet._build_master()
      _declare_state('object', working_set=working_set)
  
      require = working_set.require
      iter_entry_points = working_set.iter_entry_points
      add_activation_listener = working_set.subscribe
      run_script = working_set.run_script
      # backward compatibility
      run_main = run_script
      # Activate all distributions already on sys.path with replace=False and
      # ensure that all distributions added to the working set in the future
      # (e.g. by calling ``require()``) will get activated as well,
      # with higher priority (replace=True).
      tuple(
          dist.activate(replace=False)
          for dist in working_set
      )
      add_activation_listener(
          lambda dist: dist.activate(replace=True),
          existing=False,
      )
      working_set.entries = []
      # match order
      list(map(working_set.add_entry, sys.path))
      globals().update(locals())
function_tokens: def _initialize_master_working_set ( ) : working_set = WorkingSet . _build_master ( ) _declare_state ( 'object' , working_set = working_set ) require = working_set . require iter_entry_points = working_set . iter_entry_points add_activation_listener = working_set . subscribe run_script = working_set . run_script # backward compatibility run_main = run_script # Activate all distributions already on sys.path with replace=False and # ensure that all distributions added to the working set in the future # (e.g. by calling ``require()``) will get activated as well, # with higher priority (replace=True). tuple ( dist . activate ( replace = False ) for dist in working_set ) add_activation_listener ( lambda dist : dist . activate ( replace = True ) , existing = False , ) working_set . entries = [ ] # match order list ( map ( working_set . add_entry , sys . path ) ) globals ( ) . update ( locals ( ) )