如何抑制python中的console / cmd错误消息 [英] How do I suppress console/cmd error messages in python

问题描述

如何抑制chromedriver和pyinstaller exe的python错误消息？

How do I suppress error messages in python for chromedriver and pyinstaller exe?

我注意到当我在pyinstaller中使用chromedriver并运行它时，我得到了一条错误消息列表。我一直在尝试删除它们，但到目前为止还没有运气。
更新：似乎无头标志引起了很多悲伤。

I noticed that when I use chromedriver in pyinstaller and run it I get a list of error messages. I have been trying to remove them but no luck thus far. UPDATE: It seems the headless flag is causing a lot of grief.

DevTools listening on ws://127.0.0.1:12386/devtools/browser/74743659-2c28-45fb-bab4-3836bb91f383
[1213/214223.999:ERROR:service_manager.cc(157)] Connection InterfaceProviderSpec prevented service: content_renderer from binding interface: blink::mojom::ReportingServiceProxy exposed by: content_browser
Improvement, now how to remove this in headless.
Error messages:
DevTools listening on ws://127.0.0.1:12386/devtools/browser/74743659-2c28-45fb-bab4-3836bb91f383
[1213/214223.999:ERROR:service_manager.cc(157)] Connection InterfaceProviderSpec prevented service: content_renderer from binding interface: blink::mojom::ReportingServiceProxy exposed by: content_browser
[1213/214223.999:INFO:CONSOLE(4)] "Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.", source: http://centrebet.com/Scripts/jquery-1.6.4.min.js (4)
[1213/214226.896:INFO:CONSOLE(42)] "Uncaught ReferenceError: $ is not defined", source: http://centrebet.com/Sports/8320572 (42)
[1213/214226.899:INFO:CONSOLE(60)] "Uncaught ReferenceError: bs_auto_expand is not defined", source: http://centrebet.com/Sports/8320572 (60)
[1213/214226.900:INFO:CONSOLE(65)] "Uncaught ReferenceError: gaPush is not defined", source: http://centrebet.com/Sports/8320572 (65)
[1213/214227.987:INFO:CONSOLE(112)] "Uncaught ReferenceError: $ is not defined", source: http://centrebet.com/Sports/71973868 (112)
[1213/214227.988:INFO:CONSOLE(174)] "Uncaught ReferenceError: addStaticBubble is not defined", source: http://centrebet.com/Sports/71973868 (174)
[1213/214227.989:INFO:CONSOLE(211)] "Uncaught ReferenceError: $ is not defined", source: http://centrebet.com/Sports/71973868 (211)
[1213/214227.991:INFO:CONSOLE(431)] "Uncaught ReferenceError: addStaticBubble is not defined", source: http://centrebet.com/Sports/71973868 (431)
[1213/214227.991:INFO:CONSOLE(468)] "Uncaught ReferenceError: $ is not defined", source: http://centrebet.com/Sports/71973868 (468)
[1213/214227.998:INFO:CONSOLE(688)] "Uncaught ReferenceError: addStaticBubble is not defined", source: http://centrebet.com/Sports/71973868 (688)
[1213/214227.998:INFO:CONSOLE(725)] "Uncaught ReferenceError: $ is not defined", source: http://centrebet.com/Sports/71973868 (725)
[1213/214228.001:INFO:CONSOLE(945)] "Uncaught ReferenceError: addStaticBubble is not defined", source: http://centrebet.com/Sports/71973868 (945)
[1213/214228.001:INFO:CONSOLE(982)] "Uncaught ReferenceError: $ is not defined", source: http://centrebet.com/Sports/71973868 (982)
[1213/214228.002:INFO:CONSOLE(1202)] "Uncaught ReferenceError: addStaticBubble is not defined", source: http://centrebet.com/Sports/71973868 (1202)
[1213/214228.003:INFO:CONSOLE(1239)] "Uncaught ReferenceError: $ is not defined", source: http://centrebet.com/Sports/71973868 (1239)
[1213/214228.004:INFO:CONSOLE(1459)] "Uncaught ReferenceError: addStaticBubble is not defined", source: http://centrebet.com/Sports/71973868 (1459)
[1213/214228.004:INFO:CONSOLE(1496)] "Uncaught ReferenceError: $ is not defined", source: http://centrebet.com/Sports/71973868 (1496)
[1213/214228.005:INFO:CONSOLE(1716)] "Uncaught ReferenceError: addStaticBubble is not defined", source: http://centrebet.com/Sports/71973868 (1716)
[1213/214228.005:INFO:CONSOLE(1753)] "Uncaught ReferenceError: $ is not defined", source: http://centrebet.com/Sports/71973868 (1753)
[1213/214228.006:INFO:CONSOLE(1973)] "Uncaught ReferenceError: addStaticBubble is not defined", source: http://centrebet.com/Sports/71973868 (1973)

代码：

options = Options()
options.add_argument('--headless')
options.add_argument('--hide-scrollbars')
options.add_argument('--disable-gpu')
driver = webdriver.Chrome(chrome_options=options)


url = "http://centrebet.com/"
driver.get(url)

def page_counter():
  for x in range(1000):
      yield x

count = page_counter()
driver.get(url)
sports = driver.find_element_by_id("accordionMenu1_ulSports")
links = [url + link.get_attribute("onclick").replace("menulink('", "").replace("')", "") for link in sports.find_elements_by_xpath('//ul[@id="accordionMenu1_ulSports"]//li//ul//li//ul//li//a[starts-with(@onclick, "menulink")]')]

links = dict((next(count) + 1, e) for e in links)

desc_links = collections.OrderedDict(sorted(links.items(), reverse=True))
for key, value in desc_links.items():
    driver.get(value)

我尝试过的事情：

logging.disable(logging.CRITICAL)

logging.Logger.info = lambda *args, **kwargs: None

sys.stderr = os.devnull

logging.getLogger("requests").setLevel(logging.WARNING)

@contextmanager
def suppress_stdout():

    with open(os.devnull, "w") as devnull:
        old_stdout = sys.stdout
        sys.stdout = devnull
        try:
            yield
        finally:
            sys.stdout = old_stdout


import warnings

def fxn():
    warnings.warn("deprecated", DeprecationWarning)

with warnings.catch_warnings():
    warnings.simplefilter("ignore")
    fxn()

错误消息似乎循环播放。也许重写可能会解决...

The error message appears to loop. Perhaps rewriting may fix...

推荐答案

这些日志由Chrome发布。您可以通过将日志级别设置为致命的启动Chrome来禁用它们：

Those logs are issued by Chrome. You can disable them by launching Chrome with the log level set to Fatal:

options = Options()
options.add_argument('--headless')
options.add_argument('--hide-scrollbars')
options.add_argument('--disable-gpu')
options.add_argument("--log-level=3")  # fatal
driver = webdriver.Chrome(chrome_options=options)

尽管某些消息未通过此标志过滤，例如 DevTools正在监听... 。

Though some messages are not filtered by this flag like DevTools listening on ....

要避免它们，您将必须覆盖 selenium.webdriver.common.service.Service 并调用 subprocess.Popen 和 close_fds = True 以避免文件描述符的继承。

To avoid them, you'll have to override the selenium.webdriver.common.service.Service and call subprocess.Popen with close_fds=True to avoid the inheritance of the file descriptor.

self.process = subprocess.Popen(cmd, env=self.env,
                                close_fds=True,
                                stdout=None,
                                stderr=None,
                                stdin=None)

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