python - 如果网站崩溃，有没有办法让机器人自动重启
问题描述
如果网站崩溃，有没有办法让这个机器人自动重启，如果网站没有正确加载，有没有办法让机器人刷新页面。因为我无法在刷新时获得 xpath，而且我不知道如何让机器人重新启动，如果它没有完成它的目标
from selenium import webdriver
import time
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
start_time = time.time()
# my code here
path = "C:\Program Files (x86)\Common Files\Chromedriver.exe"
driver = webdriver.Chrome(path)
# open page
driver.get("https://www.usmint.gov/")
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="navigation"]/div[3]/ul/li[2]/a')) #PRODUCT S
)
finally:
# product schedule
driver.find_element_by_xpath('//*[@id="navigation"]/div[3]/ul/li[2]/a').click()
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="navigation"]/div[3]/ul/li[2]/div/div/ul/li[3]/a')) #2020
)
finally:
# 2020 product schedule
driver.find_element_by_xpath('//*[@id="navigation"]/div[3]/ul/li[2]/div/div/ul/li[3]/a').click()
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="4cb2318c15eb72316187ca9691"]/div/div/div[2]/div/div[1]/a')) #birth set
)
finally:
# birth set 2020
driver.find_element_by_xpath('//*[@id="4cb2318c15eb72316187ca9691"]/div/div/div[2]/div/div[1]/a').click()
'''
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="emailmodalclose"]')) #clear
)
finally:
# clear email list stupidity
driver.find_element_by_xpath('//*[@id="emailmodalclose"]').click()
'''
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '/html/body/div[1]/div[3]/div[2]/div[2]/form/div/div[5]/button[1]')) #add to
)
finally:
# add to bag
driver.find_element_by_xpath("/html/body/div[1]/div[3]/div[2]/div[2]/form/div/div[5]/button[1]").click()# double qoutes?
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="mini-cart"]/div[3]/div[2]/div[3]/a')) #checkout
)
finally:
# checkout
driver.find_element_by_xpath('//*[@id="mini-cart"]/div[3]/div[2]/div[3]/a').click()
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_login_username"]')) #login
)
finally:
# login
driver.find_element_by_xpath('//*[@id="dwfrm_login_username"]').send_keys("email")
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_login_password"]')) #Password
)
finally:
# password
driver.find_element_by_xpath('//*[@id="dwfrm_login_password"]').send_keys("password")
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="checkoutMethodLoginSubmit"]/span')) #checkout as
)
finally:
# checkout as registered user
driver.find_element_by_xpath('//*[@id="checkoutMethodLoginSubmit"]/span').click()
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_billing_paymentMethods_creditCardList"]/option[2]')) #credit card scroll
)
finally:
# credit card scroll
driver.find_element_by_xpath('//*[@id="dwfrm_billing_paymentMethods_creditCardList"]/option[2]').click() # .format?
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_billing_paymentMethods_creditCard_month"]/option[2]')) #cc exp m
)
finally:
# cc exp month
driver.find_element_by_xpath('//*[@id="dwfrm_billing_paymentMethods_creditCard_month"]/option[2]').click()
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_billing_paymentMethods_creditCard_year"]/option[11]')) #cc exp y
)
finally:
# cc exp year
driver.find_element_by_xpath('//*[@id="dwfrm_billing_paymentMethods_creditCard_year"]/option[11]').click()
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_billing_paymentMethods_creditCard_cvn"]')) #cvv
)
finally:
# cvv
driver.find_element_by_xpath('//*[@id="dwfrm_billing_paymentMethods_creditCard_cvn"]').send_keys("999")
time.sleep(2)
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="checkoutContinuePaymentDelegator"]')) #continue to final
)
finally:
# continue to final review
driver.find_element_by_xpath('//*[@id="checkoutContinuePaymentDelegator"]').click()
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="formAgreementLabel"]/span')) #terms of use
)
finally:
# terms of use button
driver.find_element_by_xpath('//*[@id="formAgreementLabel"]/span').click()
try:
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="submitOrderButton"]')) #Place order
)
finally:
# place order
driver.find_element_by_xpath('//*[@id="submitOrderButton"]').click()
print ("time elapsed: {:.2f}s".format(time.time() - start_time))
driver.quit()
#if __name__ == '__main__':
# order(keys)
如果您在代码中看到任何可以修复的内容，将不胜感激
解决方案
正如评论中所要求的，这是最简单但不是理想的方式。由于您的try except子句不包含except子句，因此它们在您的代码中没有任何用途，除了它只是抑制所有 your TimeoutException，您实际上想要它们，因为您需要知道它遇到什么错误。要改进此解决方案，您可以考虑拆分try except子句并仅重新执行那些等待元素行而不是整个脚本。
from selenium import webdriver
import time
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
start_time = time.time()
# my code here
path = "C:\Program Files (x86)\Common Files\Chromedriver.exe"
driver = webdriver.Chrome(path)
while True:
try:
# open page
driver.get("https://www.usmint.gov/")
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="navigation"]/div[3]/ul/li[2]/a')) #PRODUCT S
)
# product schedule
driver.find_element_by_xpath('//*[@id="navigation"]/div[3]/ul/li[2]/a').click()
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="navigation"]/div[3]/ul/li[2]/div/div/ul/li[3]/a')) #2020
)
# 2020 product schedule
driver.find_element_by_xpath('//*[@id="navigation"]/div[3]/ul/li[2]/div/div/ul/li[3]/a').click()
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="4cb2318c15eb72316187ca9691"]/div/div/div[2]/div/div[1]/a')) #birth set
)
# birth set 2020
driver.find_element_by_xpath('//*[@id="4cb2318c15eb72316187ca9691"]/div/div/div[2]/div/div[1]/a').click()
'''
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="emailmodalclose"]')) #clear
)
# clear email list stupidity
driver.find_element_by_xpath('//*[@id="emailmodalclose"]').click()
'''
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '/html/body/div[1]/div[3]/div[2]/div[2]/form/div/div[5]/button[1]')) #add to
)
# add to bag
driver.find_element_by_xpath("/html/body/div[1]/div[3]/div[2]/div[2]/form/div/div[5]/button[1]").click()# double qoutes?
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="mini-cart"]/div[3]/div[2]/div[3]/a')) #checkout
)
# checkout
driver.find_element_by_xpath('//*[@id="mini-cart"]/div[3]/div[2]/div[3]/a').click()
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_login_username"]')) #login
)
# login
driver.find_element_by_xpath('//*[@id="dwfrm_login_username"]').send_keys("email")
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_login_password"]')) #Password
)
# password
driver.find_element_by_xpath('//*[@id="dwfrm_login_password"]').send_keys("password")
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="checkoutMethodLoginSubmit"]/span')) #checkout as
)
# checkout as registered user
driver.find_element_by_xpath('//*[@id="checkoutMethodLoginSubmit"]/span').click()
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_billing_paymentMethods_creditCardList"]/option[2]')) #credit card scroll
)
# credit card scroll
driver.find_element_by_xpath('//*[@id="dwfrm_billing_paymentMethods_creditCardList"]/option[2]').click() # .format?
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_billing_paymentMethods_creditCard_month"]/option[2]')) #cc exp m
)
# cc exp month
driver.find_element_by_xpath('//*[@id="dwfrm_billing_paymentMethods_creditCard_month"]/option[2]').click()
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_billing_paymentMethods_creditCard_year"]/option[11]')) #cc exp y
)
# cc exp year
driver.find_element_by_xpath('//*[@id="dwfrm_billing_paymentMethods_creditCard_year"]/option[11]').click()
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="dwfrm_billing_paymentMethods_creditCard_cvn"]')) #cvv
)
# cvv
driver.find_element_by_xpath('//*[@id="dwfrm_billing_paymentMethods_creditCard_cvn"]').send_keys("999")
time.sleep(2)
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="checkoutContinuePaymentDelegator"]')) #continue to final
)
# continue to final review
driver.find_element_by_xpath('//*[@id="checkoutContinuePaymentDelegator"]').click()
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="formAgreementLabel"]/span')) #terms of use
)
# terms of use button
driver.find_element_by_xpath('//*[@id="formAgreementLabel"]/span').click()
element = WebDriverWait(driver, 10).until(
EC.element_to_be_clickable((By.XPATH, '//*[@id="submitOrderButton"]')) #Place order
)
# place order
driver.find_element_by_xpath('//*[@id="submitOrderButton"]').click()
print ("time elapsed: {:.2f}s".format(time.time() - start_time))
driver.quit()
break
except Exception as err:
print(f"Error: {str(err)}, trying again")
pass
#if __name__ == '__main__':
# order(keys)
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