TypeError：__init __（）需要2个位置参数，但有3个被给出

Question

我遇到了问题。程序必须获得IP地址frome txt文件，并为每个ip发送。检查日志是否合适。 我不知道为什么在这个简单的代码，我有一个问题。

from termcolor import colored 
from selenium import webdriver 
from selenium.webdriver.common.keys import Keys 
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 


myfile = [p.rstrip() for p in open('test.txt')] 

for ip in myfile: 

    driver = webdriver.Chrome('./lib/chromedriver.exe') 
    driver.get("http://admin:[email protected]" + ip) 
    try: 
     element = WebDriverWait(driver, 20).until(
      EC.presence_of_element_located(By.XPATH, ".//*/tbody/tr/td/table/tbody/tr[2]/td[2]") 
     ) 
    except TimeoutException: 
     print(colored(ip + " except timeout error", "red")) 

    else: 
     print(colored(ip + " is OK", "green")) 
    finally: 
     driver.quit() 

错误：

Traceback (most recent call last): 
    File "E:/GS/Py/wifiproject/dwl3200.py", line 21, in <module> 
    EC.presence_of_element_located(By.XPATH, ".//*/tbody/tr/td/table/tbody/tr[2]/td[2]") 
    TypeError: __init__() takes 2 positional arguments but 3 were given 

Answer 1

尝试使用尽可能

EC.presence_of_element_located((By.XPATH, ".//*/tbody/tr/td/table/tbody/tr[2]/td[2]"))) 

你应该提供By.locator和实际的定位表达的参数元组而不是作为两个单独的参数