code: def _import_management():
          
  
          from importlib import import_module
  
          for app_name in settings.INSTALLED_APPS:
              try:
                  import_module('.management', app_name)
              except SystemError:
                  # We get SystemError if INSTALLED_APPS contains the
                  # name of a class rather than a module
                  pass
              except ImportError as exc:
                  # This is slightly hackish. We want to ignore ImportErrors
                  # if the "management" module itself is missing -- but we don't
                  # want to ignore the exception if the management module exists
                  # but raises an ImportError for some reason. The only way we
                  # can do this is to check the text of the exception. Note that
                  # we're a bit broad in how we check the text, because different
                  # Python implementations may not use the same text.
                  # CPython uses the text "No module named management"
                  # PyPy uses "No module named myproject.myapp.management"
                  msg = exc.args[0]
                  if not msg.startswith('No module named') \
                          or 'management' not in msg:
                      raise
docs: Import the 'management' module within each installed app, to register
          dispatcher events.