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我必須用我project.when硒我使用selenium.i我在這樣如何擺脫硒中的特殊例外情況？
time.sleep(6)
我給加載特定頁面足夠的間隔每一步給人做，但還是我在某個點面對下面的錯誤。 晴我得到異常喜歡
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)
，我也越來越因爲WebDriverWait（）沒有這樣的執行錯誤，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
什麼擺脫這種例外的方式？