如何摆脱硒中的特殊例外情况？

我必须用我project.when硒我使用selenium.i我在这样如何摆脱硒中的特殊例外情况？

time.sleep(6)

我给加载特定页面足够的间隔每一步给人做，但还是我在某个点面对下面的错误。晴我得到异常喜欢

定期例外：

Exception: Message: u'Unable to locate element: {"method":"xpath","selector":"//textarea[@style=\\"overflow-y: hidden; height: 50px; width: 300px;\\"]"}' ; Stacktrace: Method WebDriverError threw an error in file:///tmp/tmpBxGp2P/extensions/[email protected]/resource/modules/atoms.js 
    Traceback (most recent call last): 
    File "crawl_optimize.py", line 206, in main 
    word_query = browser.find_element_by_xpath('//textarea[@style="overflow-y: hidden; height: 50px; width: 300px;"]') 
    File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 210, in find_element_by_xpath 
    return self.find_element(by=By.XPATH, value=xpath) 
    File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 643, in find_element 
    {'using': by, 'value': value})['value'] 
    File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 153, in execute 
    self.error_handler.check_response(response) 
    File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/remote/errorhandler.py", l  ine 147, in check_response 
    raise exception_class(message, screen, stacktrace)

，我也越来越因为WebDriverWait（）没有这样的执行错误，直到（）：

NoSuchElementException: Message: u'Unable to locate element: { "method":"xpath","selector":"//textarea[@style=\\"overflow-y: hidden; height: 50px; width: 300px;\\"]"}' ; Stacktrace: Method WebDriverError threw an error in file:///tmp/tmpBxGp2P/extensions/[email protected]/resource/modules/atoms.js 
    keyword : balance transfer ad pos : 2 
    Exception: Message: None 
    Traceback (most recent call last): 
    File "crawl_optimize.py", line 228, in main 
    start_cpc,end_cpc = set_initial_cpc(initial_max_cpc,ad_position) 
    File "crawl_optimize.py", line 95, in set_initial_cpc 
    ep = crawl_position(cost) 
    File "crawl_optimize.py", line 82, in crawl_position 
    WebDriverWait(browser, 10).until(lambda driver : driver.find_element_by_link_text(word.lower())) 
    File "/usr/local/lib/python2.6/dist-packages/selenium/webdriver/support/wait.py", line 55, in until 
    raise TimeoutException() 
    TimeoutException: Message: None

什么摆脱这种例外的方式？

来源

2012-02-01 Nava

可能是2件事。

你的元素尚未分配的6秒
你的定位是畸形内完成加载。这看起来可疑......

{“method”：“xpath”，“selector”：“// textarea [@style = \”overflow-y：hidden; height：50px; \“]”}'

您可以检查定位器是否可以使用FireFinder或类似方法返回您期望的结果吗？

如果定位是好的，你可以尝试使用WebDriverWait & ExpectedCondition确认页面加载完成，而不是赌博，你页面会一直在6S

加载

来源

2012-02-03 06:36:12

如何摆脱硒中的特殊例外情况？

回答

相关问题