TimeoutException：消息：

Question

import os   
from selenium import webdriver
import time    
from linkedin_scraper import actions    
from selenium import webdriver    
from selenium.webdriver.common.by import By    
from selenium.webdriver.support.ui import WebDriverWait    
from selenium.webdriver.support import expected_conditions as EC    
from selenium.common.exceptions import TimeoutException    
from selenium.webdriver.chrome.options import Options


chrome_options = Options()    
chrome_options.add_argument("--headless")

driver = webdriver.Chrome("driver/chromedriver", options=chrome_options)    
email = os.getenv("LINKEDIN_USER")    
password = os.getenv("LINKEDIN_PASSWORD")

actions.login(driver, email, password) # if email and password isnt given, it'll prompt in terminal
driver.get('https://www.linkedin.com/company/biorasi-llc/about/')

_ = WebDriverWait(driver, 3).until(EC.presence_of_all_elements_located((By.TAG_NAME, 'section')))

time.sleep(3)    
grid = driver.find_elements_by_tag_name("section")[3]
about_us = grid.find_elements_by_tag_name("p")[0].text.strip()

print(about_us)

 17 email = os.getenv("LINKEDIN_USER")
 18 password = os.getenv("LINKEDIN_PASSWORD")

 20 driver.get('https://www.linkedin.com/company/biorasi-llc/about/')
 21 _ = WebDriverWait(driver, 3).until(EC.presence_of_all_elements_located((By.TAG_NAME, 'section')))

 28   password_elem.submit()
 29 

--->30 element=WebDriverWait(driver,10).tea(ec.presence_of_element_locited((by.id,“profile-nav-item”））

~\anaconda3\lib\site-packages\selenium\webdriver\support\wait.py在（self,method,message）之前

 78             if time.time() > end_time:
 79                 break

--->80引发TimeoutException（消息、屏幕、stacktrace）81 82 def until_not（self,method,message=''):

有人，请帮忙怎么解决这个。

Answer 1

可能是因为超时太短（3秒），所以在页面完全加载之前，它就达到了超时阈值。在第21行试着提高到5-10秒。

TIMEOUT = 10
 _ = WebDriverWait(driver, TIMEOUT).until(EC.presence_of_all_elements_located((By.TAG_NAME, 'section')))

以下是一些改进代码的技巧：

• 您已经在使用fluent wait(webdriverwait)，如果可能的话，尽量减少使用.sleep的时间。WebDriverWait将停止等待并返回您的元素，从而节省时间。
• 通过标记名查找元素&按序号定位（在本例中是第4节标记）是一个坏主意。如果网站添加更多的部分，将会中断。尝试使用更好的XPATH，这是我的代码，我没有测试过，但我认为它会工作得很好。

import os   
from selenium import webdriver
import time    
from linkedin_scraper import actions    
from selenium import webdriver    
from selenium.webdriver.common.by import By    
from selenium.webdriver.support.ui import WebDriverWait    
from selenium.webdriver.support import expected_conditions as EC    
from selenium.common.exceptions import TimeoutException    
from selenium.webdriver.chrome.options import Options


chrome_options = Options()    
chrome_options.add_argument("--headless")

driver = webdriver.Chrome("driver/chromedriver", options=chrome_options)    
email = os.getenv("LINKEDIN_USER")    
password = os.getenv("LINKEDIN_PASSWORD")

actions.login(driver, email, password) # if email and password isnt given, it'll prompt in terminal
driver.get('https://www.linkedin.com/company/biorasi-llc/about/')

# directly finds paragraph, removed time.sleep
paragraph_elem = WebDriverWait(driver, 15).until(EC.presence_of_element_located((By.XPATH, '//section//h4/..//p')))
about_us = paragraph_elem.text.strip()

print(about_us)