webdriver.py 文件源码

def __init__(self, executable_path=None, port=0,
                 desired_capabilities=DesiredCapabilities.SAFARI, quiet=False):
        """
        Creates a new instance of the Safari driver.

        Starts the service and then creates new instance of Safari Driver.

        :Args:
         - executable_path - path to the executable. If the default is used it assumes the executable is in the
           Environment Variable SELENIUM_SERVER_JAR
         - port - port you would like the service to run, if left as 0, a free port will be found.
         - desired_capabilities: Dictionary object with desired capabilities (Can be used to provide various Safari switches).
        """
        if executable_path is None:
            try:
                executable_path = os.environ["SELENIUM_SERVER_JAR"]
            except:
                raise Exception("No executable path given, please add one to Environment Variable \
                'SELENIUM_SERVER_JAR'")
        self.service = Service(executable_path, port=port, quiet=quiet)
        self.service.start()

        RemoteWebDriver.__init__(self,
            command_executor=self.service.service_url,
            desired_capabilities=desired_capabilities)
        self._is_remote = False