Selenium:发送消息到whatsapp的路径不工作

Question

昨天我编写了这段代码，用于通过whatsapp发送消息。然而，我尝试了许多方法将消息放在消息框中，但似乎都不起作用。每次我收到错误：消息：未知错误：调用函数结果缺少"value"。我尝试了所有的xpath(类(来插入消息，所以我认为其他地方出了问题。运行代码时，它会打开web.whatsapp，选择合适的人，选择消息框，但不会将消息放入其中。或者可能是我的驱动程序和chrome版本没有很好地对应？

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
import datetime
import time
# Replace below path with the absolute path
# to chromedriver in your computer
driver = webdriver.Chrome('insert driver_path')
driver.get("https://web.whatsapp.com/")
WebDriverWait(driver, 10)
name = 'Name Person'
text = 'test from bot'
select_contact = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "div[role='option'] span[title='{}']".format(name)))).click()
time.sleep(2)
# select_messagebox = driver.find_element_by_css_selector('.pluggable-input-placeholder')
# select_messagebox = driver.find_element_by_class_name('_3FRCZ copyable-text selectable-text')
select_messagebox = driver.find_element_by_xpath('insert x path')
time.sleep(2)
select_messagebox.send_keys(text)

Answer 1

使用下面的XPath和CSS选择器。

XPath:

//*[@id="main"]//div[@class='_3FRCZ copyable-text selectable-text']

CSS选择器：

div[class='_3FRCZ copyable-text selectable-text'][data-tab='1']