docs: def klass_to_pypath(klass):
      """when a class is defined within the module that is being executed as
      main, the module name will be specified as '__main__' even though the
      module actually had its own real name.  This ends up being very confusing
      to Configman as it tries to refer to a class by its proper module name.
      This function will convert a class into its properly qualified actual
      pathname.  This method is used when a Socorro app is actually invoked
      directly through the file in which the App class is defined.  This allows
      configman to reimport the class under its proper name and treat it as if
      it had been run through the SocorroWelcomeApp.  In turn, this allows
      the application defaults to be fetched from the properly imported class
      in time for configman use that information as value source."""
      if klass.__module__ == '__main__':
          module_path = (
              sys.modules['__main__']
              .__file__[:-3]
          )
          module_name = ''
          for a_python_path in sys.path:
              tentative_pathname = module_path.replace(a_python_path, '')
              if tentative_pathname != module_path:
                  module_name = (
                      tentative_pathname.replace('/', '.').strip('.')
                  )
                  break
          if module_name == '':
              return py_obj_to_str(klass)
      else:
          module_name = klass.__module__
      return "%s.%s" % (module_name, klass.__name__)