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我用 sys.argv 修复了我之前的问题（取决于 .cmd 文件如何调用脚本）。

现在我遇到了另一个麻烦：

selenium.common.exceptions.StaleElementReferenceException: Message: stale element reference: element is not attached to the page document

我阅读了很多关于此的内容，但我仍然对如何处理它感到困惑。

我的代码很简单：

while True:
    price = float(driver.find_elements_by_xpath("//td[@class='col-prix']")[0].text.strip()[:-1].replace(",","."))
    if a <= price <= b: break
    driver.find_elements_by_xpath("//button")[0].click()

有时我得到：

Traceback (most recent call last):
  File "script.py", line 51, in <module>
    driver.find_elements_by_xpath("//button")[0].click()

(...)

File "C:\Python\Python37-32\lib\site-packages\selenium-3.141.0-py3.7.egg\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.StaleElementReferenceException: Message: stale element reference: element is not attached to the page document

而有时 ：

Traceback (most recent call last):
  File "script.py", line 49, in <module>
    price = float(driver.find_elements_by_xpath("//td[@class='col-prix']")[0].text.strip()[:-1].replace(",","."))

(...)

  File "C:\Python\Python37-32\lib\site-packages\selenium-3.141.0-py3.7.egg\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.StaleElementReferenceException: Message: stale element reference: element is not attached to the page document

所以我有兴趣检查两者是否都存在（可见？？？）。

我试图实现一个简单的：

wait = WebDriverWait(driver, 60)
element = wait.until(EC.presence_of_element_located((By.XPATH,"//button")))

和

wait = WebDriverWait(driver, 60)
element = wait.until(EC.presence_of_element_located((By.XPATH,"//td[@class='col-prix']")))

但我仍然遇到同样的错误。

问题＃1：我使用正确的语法吗？

问题＃2：这是否可以与两个元素都需要有一个谓词[0]的事实联系起来（如果是的话，我如何在presence_of_element_located中指定谓词）？

谢谢你的帮助！;-)

编辑

这是我的代码。

我有一个设置文件“test.txt”，它只包含：

https://ticketplace.psg.fr/fr/recherche-place/668829,1,1:2:3:4:5:6:7:8:9:10:11:12:13:14:15,81,161

我有一个 .cmd 文件，其中仅包含：

start "test" "py" "test.py" "test.txt"

我有一个测试脚本“test.py”：

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
import selenium.webdriver as webdriver
import selenium.webdriver.support.ui as ui
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import Select
from time import sleep
import datetime
from selenium.webdriver.chrome.options import Options
from selenium.common.exceptions import NoSuchElementException, StaleElementReferenceException
import csv
import sys
from playsound import playsound
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By

driver = webdriver.Chrome(executable_path="chromedriver")
with open(str(sys.argv[1]), "r") as settings:
    for setting in settings:
        driver.get(setting.split(",")[0].strip())
        tickets=setting.split(",")[1]
        categories=setting.split(",")[2]
        minPrice=float(setting.split(",")[3].strip())
        maxPrice=float(setting.split(",")[4].strip())
        try:
            driver.find_element_by_css_selector(".accepte_cookie.bandeau_close").click()
            alert = driver.switch_to.alert
            alert.accept()
            sleep(1)
        except:
            pass
        try:
            driver.find_elements_by_xpath("//button")[0].click()
            driver.find_element_by_xpath("//li[@data-search-term="+tickets+"]").click()
            driver.find_elements_by_xpath("//button")[0].click()
            sleep(1)
            driver.find_elements_by_xpath("//button")[1].click()
            for categorieNumber in categories.split(':'):
                driver.find_element_by_xpath("//li[@data-search-term='cat. "+categorieNumber+"']").click()
            driver.find_elements_by_xpath("//button")[1].click()
            sleep(1)
        except:
            continue
        while True:
            hint = float(driver.find_elements_by_xpath("//td[@class='col-prix']")[0].text.strip()[:-1].replace(",","."))
            if minPrice <= hint <= maxPrice: break
            driver.find_elements_by_xpath("//button")[0].click()
            driver.find_elements_by_xpath("//button")[0].click()
            sleep(1)
        cat = driver.find_elements_by_xpath("//td[@class='col-cat']")[0].text
        print(datetime.datetime.now().strftime("%H:%M")+" - "+tickets+" tix "+cat+" at "+str(int(hint)))
4

1 回答 1

1

而不是这个。

while True:
            hint = float(driver.find_elements_by_xpath("//td[@class='col-prix']")[0].text.strip()[:-1].replace(",","."))
            if minPrice <= hint <= maxPrice: break
            driver.find_elements_by_xpath("//button")[0].click()
            driver.find_elements_by_xpath("//button")[0].click()
            sleep(1)

试试下面的代码。

while True:
price = float(driver.find_elements_by_xpath("//td[@class='col-prix']")[0].text.strip()[:-1].replace(",", "."))
print(price)
if a <= price <= b: break
element=WebDriverWait(driver,5).until(EC.visibility_of_element_located((By.XPATH,"//button/span[text()='Tous les billets']")))
ActionChains(driver).move_to_element(element).perform()
driver.refresh()

请让我知道它是否有效。

于 2019-02-19T14:13:54.917 回答