即使使用ui.WebDriverWait()chrome selenium python后也出现随机TimeoutException [英] Random TimeoutException even after using ui.WebDriverWait() chrome selenium python
本文介绍了即使使用ui.WebDriverWait()chrome selenium python后也出现随机TimeoutException的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
下面的代码的随机超时异常不能确定解决这些问题的最佳方法是什么，并且这种超时并非始终发生，并且它确实会在某个时间或所有时间找到元素
Random timeout exception for the code below not sure whats the best approach to address these issues, and this timeout not happen all time, and also it does find elements sometime or all time
我们非常感谢您的评论和建议，显然，直到将元素加载到浏览器应用程序中或者元素在每次加载新页面时的间隔都不同的情况下，显式等待才会处理
we appreciate your comments and suggestions and apparently explicit wait is not handling until the elements gets loaded into the browser application or elements are getting different interval in every single time when new page gets loaded
"""
""
import platform , logging
import os,re
from time import sleep
import selenium.webdriver.support.ui as ui
import selenium.webdriver.support.expected_conditions as EC
from selenium.webdriver.common.by import By
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.chrome.webdriver import WebDriver
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.action_chains import ActionChains
class Cloud(object):
"""
cloud class to get query and response
"""
def __init__(self, username='xxxxxx', password='xxxx'):
logging.basicConfig(format='%(asctime)s %(message)s', datefmt='%m/%d/%Y %I:%M:%S %p', level=logging.INFO)
self.logger = logging.getLogger(__name__)
self.url = "https://www.amazon.com"
self.username = username
self.password = password
self.timeout = 100
self.driver = None
self.get_chrome_driver()
def get_chrome_driver(self):
"""
get chrome driver
"""
if platform.system().lower() == 'windows':
if self.driver is None:
chrome_options = Options()
#chrome_options.add_argument('--disable-extensions')
chrome_options.add_argument('--start-maximized')
chrome_options.add_argument('--disable-popup-blocking')
chrome_options.add_argument('--ignore-certificate-errors')
chrome_options.add_argument('--allow-insecure-localhost')
chrome_options.add_argument('--disable-infobars')
chrome_options.add_argument("--log-level=3")
chrome_driver_path = os.path.join(str(os.environ['PYTHONPATH'].split(';')[0]),"bin","chromedriver","chromedriver.exe")
self.driver = WebDriver(executable_path=chrome_driver_path, chrome_options=chrome_options)
return self.driver
def login(self, username='xxxxxxx', password='xxxxx'):
"""
Login into amazon cloud
"""
self.logger.info("logging in amazon cloud username: %s and password: %s" %(self.username, re.sub(r".", "*", self.password)))
self.driver.get(self.url)
# wait for login username textbox
self.wait_visibility_element(By.XPATH, "//div[@id='nav-signin-tooltip']//span[@class='nav-action-inner'][contains(text(),'Sign in')]")
self.driver.find_element_by_xpath(" //div[@id='nav-signin-tooltip']//span[@class='nav-action-inner'][contains(text(),'Sign in')]").click()
self.wait_visibility_element(By.XPATH,"//label[@class='a-form-label']")
self.wait_visibility_element(By.XPATH,"//input[@id='ap_email']")
username_textbox = self.driver.find_element_by_xpath("//input[@id='ap_email']")
username_textbox.clear()
username_textbox.send_keys(self.username)
self.driver.find_element_by_xpath("//input[@id='continue']").click()
self.wait_visibility_element(By.XPATH,"//input[@id='ap_password']") #//label[@class='a-form-label']
password_textbox = self.driver.find_element_by_xpath("//input[@id='ap_password']")
password_textbox.clear()
password_textbox.send_keys(self.password)
# click on submit button
self.driver.find_element_by_xpath("//input[@id='signInSubmit']").click()
def wait_visibility_element(self, by_type, element_name):
"""
wait for visibility of element
:param by_type: Locate element using type of element
:param element_name: element name
"""
ui.WebDriverWait(self.driver, self.timeout).until(
EC.visibility_of_element_located((by_type, element_name)))
def get_audio_text(self, multi_turn_count=1):
self.login()
#Arrow in the Top Menu
self.wait_visibility_element(By.XPATH, "//a[@id='nav-link-accountList']//span[@class='nav-icon nav-arrow']")
ui.WebDriverWait(self.driver, self.timeout).until(EC.element_to_be_clickable((By.XPATH, "//a[@id='nav-link-accountList']//span[@class='nav-icon nav-arrow']")))
self.driver.find_element_by_xpath("//a[@id='nav-link-accountList']//span[@class='nav-icon nav-arrow']").click()
#To avoid click event ambiguity
firstLevelMenu = self.driver.find_element_by_xpath("//span[contains(@class,'nav-line-2')][contains(text(),'Account & Lists')]")
action = ActionChains(self.driver)
action.move_to_element(firstLevelMenu).perform()
#sub menu select and click
self.wait_visibility_element(By.XPATH, "//span[contains(text(),'Your Content and Devices')]")
self.driver.find_element_by_xpath("//span[contains(text(),'Your Content and Devices')]").click()
#Alexa Privacy
self.wait_visibility_element(By.XPATH, "//div[@id='ng-app']//div[2]//div[1]//div[1]//div[1]//div[1]//div[1]//div[2]//div[6]//div[1]//div[1]")
self.driver.find_element_by_xpath("//div[@id='ng-app']//div[2]//div[1]//div[1]//div[1]//div[1]//div[1]//div[2]//div[6]//div[1]//div[1]").click()
self.wait_visibility_element(By.XPATH,'//div[@class="navAlexaOptionTitle_alexaNavHeader_myx ng-binding"][contains(text(),"Review Voice History")]')
ui.WebDriverWait(self.driver, self.timeout).until(
EC.element_to_be_clickable((By.XPATH, '//div[@class="navAlexaOptionTitle_alexaNavHeader_myx ng-binding"][contains(text(),"Review Voice History")]')))
ui.WebDriverWait(self.driver, self.timeout).until(EC.text_to_be_present_in_element((By.XPATH, '//span[@class="overviewHeadingString_myx ng-binding"]'), 'Alexa Privacy'))
self.driver.find_element_by_xpath('//div[@class="navAlexaOptionTitle_alexaNavHeader_myx ng-binding"][contains(text(),"Overview")]').click()
self.driver.find_element_by_xpath("//div[@class='navAlexaOptionTitle_alexaNavHeader_myx ng-binding'][contains(text(),'Review Voice History')]").click()
# Select the dropdown box
self.wait_visibility_element(By.XPATH,"//span[@id='timePickerDesktop']//span[@class='a-button-text a-declarative']")
ui.WebDriverWait(self.driver, self.timeout).until(EC.element_to_be_clickable((By.XPATH, "//span[@id='timePickerDesktop']//span[@class='a-button-text a-declarative']")))
self.driver.find_element_by_xpath("//span[@id='timePickerDesktop']//span[@class='a-button-text a-declarative']").click()
#All history selection
self.wait_visibility_element(By.XPATH,"//a[@id='timePickerDesktop_4']")
ui.WebDriverWait(self.driver, self.timeout).until(EC.element_to_be_clickable((By.XPATH, "//a[@id='timePickerDesktop_4']")))
self.driver.find_element_by_xpath("//a[@id='timePickerDesktop_4']").click()
# read first text format of the data
self.wait_visibility_element(By.XPATH,"//span[@id='mainInfo-0']//div[contains(@class,'summaryCss')]")
txt = self.driver.find_element_by_xpath("//span[@id='mainInfo-0']//div[contains(@class,'summaryCss')]").text
question_text = txt.encode("utf-8")[3:-3]
# Dropdown the rectangle menu
self.driver.find_element_by_xpath("//div[@id='arrowExpand-0']//i[@class='fa fa-angle-down caretAlignment']").click()
# read AVS Response
self.wait_visibility_element(By.XPATH,"//div[@id='activityItemsInner-0']//div[@class='ttsInfo']")
ui.WebDriverWait(self.driver, self.timeout).until(EC.element_to_be_clickable((By.XPATH, "//div[@id='activityItemsInner-0']//div[@class='ttsInfo']")))
txt = self.driver.find_element_by_xpath("//div[@id='activityItemsInner-0']//div[@class='ttsInfo']").text
answer_text = txt.encode("utf-8")[3:-3]
self.sign_out_direct()
return question_text, answer_text
def sign_out(self):
#Sigout menu nevigation
self.driver.find_element_by_xpath("//i[@class='hm-icon nav-sprite']").click()
self.wait_visibility_element(By.XPATH,"//div[contains(text(),'SHOP BY CATEGORY')]")
#sign out
sign_out_element = self.driver.find_element_by_xpath("//li[44]//a[1]")
self.driver.execute_script("arguments[0].scrollIntoView();", sign_out_element)
#self.driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")
ui.WebDriverWait(self.driver, self.timeout).until(EC.element_to_be_clickable((By.XPATH, "//li[44]//a[1]")))
self.driver.find_element_by_xpath("//li[44]//a[1]").click()
self.sign_out_direct()
#Close current tab
self.driver.close()
def sign_out_direct(self):
#Arrow in the Top Menu
self.wait_visibility_element(By.XPATH, "//a[@id='nav-link-accountList']//span[@class='nav-icon nav-arrow']")
ui.WebDriverWait(self.driver, self.timeout).until(EC.element_to_be_clickable((By.XPATH, "//a[@id='nav-link-accountList']//span[@class='nav-icon nav-arrow']")))
self.driver.find_element_by_xpath("//a[@id='nav-link-accountList']//span[@class='nav-icon nav-arrow']").click()
#To avoid click event ambiguity
firstLevelMenu = self.driver.find_element_by_xpath("//span[contains(@class,'nav-line-2')][contains(text(),'Account & Lists')]")
action = ActionChains(self.driver)
action.move_to_element(firstLevelMenu).perform()
#sub menu select and click
self.wait_visibility_element(By.XPATH, " //span[contains(text(),'Sign Out')]")
self.driver.find_element_by_xpath("//span[contains(text(),'Sign Out')]").click()
#Close current tab
self.driver.close()
if __name__ == '__main__':
for loop in range(20):
PAGE = Cloud()
#PAGE.login()
OUTPUT = PAGE.get_audio_text()
print("\n\nQuestion:: %s"%str(list(OUTPUT)[0]).upper())
print("Answer:: %s"%str(list(OUTPUT)[1]).upper())
#PAGE.sign_out()
#PAGE.sign_out_direct()
sleep(2)
推荐答案
如果您特别张贴引发超时异常的代码行，这将有助于更轻松地查找问题.
If you post the lines of code in particular that are throwing the timeout exceptions, this will help track down the issues easier.
我注意到您的大多数等待是等待 visibility_of_element_located .我建议尝试将其中一些更改为 element_to_be_clickable ，因为某些元素在完全呈现之前会出现在DOM上.
I noticed most of your waits are for visibility_of_element_located. I would recommend trying to change some of those to element_to_be_clickable instead, because some elements will appear on the DOM before they are fully rendered.
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