python - 警告(来自警告模块): ResourceWarning: unclosed using selenium

Question

import unittest
from selenium import webdriver
from selenium.webdriver.common.keys import Keys


class PythonOrgSearch(unittest.TestCase):

    def setUp(self):
        self.driver = webdriver.Firefox()

    def test_search_in_python_org(self):
        driver = self.driver
        driver.get("http://www.python.org")
        self.assertIn("Python", driver.title)
        elem = driver.find_element_by_name("q")
        elem.send_keys("selenium")
        elem.send_keys(Keys.RETURN)
        self.assertIn("Google", driver.title)

    def tearDown(self):
        self.driver.close()

if __name__=="__main__":
    unittest.main()

我收到此警告。怎么了？

Warning (from warnings module):
  File "C:\Python33\lib\site-packages\selenium-2.37.2-py3.3.egg\selenium\webdriver\firefox\firefox_binary.py", line 95
    while not utils.is_connectable(self.profile.port):
ResourceWarning: unclosed <socket.socket object, fd=400, family=2, type=1, proto=0>

Answer 1

这是一个已知错误:

http://code.google.com/p/selenium/issues/detail?id=5923

不过忽略它是安全的。如果您使用的是 Python 3，您可以:

unittest.main(warnings='ignore')

参见 Python 3 unittest docs .

在 Python 2 中，你会使用这样的东西:

with warnings.catch_warnings(record=True):
     unittest.main()

比照Python 2 warnings docs

如果您能原谅无耻的 self 推销，在我写的一本小书中有更多关于 Selenium 的信息，here .