Python selenium 多线程，“单独的 WebDriver 实例”

Question

我很困惑他们所说的“单独的WebDriver实例”使其成为线程安全，这是否意味着对于我的代码中的每个线程我将使用不同的WebDriver？

例如，如果我有 3 个线程，这意味着我必须向我的项目添加 3 个不同的网络驱动器才能单独使用其中的每一个，这是真的吗？

这就是人们所说的线程安全，这就是我很困惑的原因：

import threading
from selenium import webdriver

def thread_function():
    # Initialize a new WebDriver instance for this thread
    driver = webdriver.Chrome()
    
    # Perform actions with this WebDriver instance
    driver.get("https://www.example.com")
    # ...

    # Close the WebDriver instance when done
    driver.quit()

# Create multiple threads, each with its WebDriver
thread1 = threading.Thread(target=thread_function)
thread2 = threading.Thread(target=thread_function)

# Start the threads
thread1.start()
thread2.start()

# Wait for threads to complete
thread1.join()
thread2.join()

这就是我正在尝试做的事情，我做得正确吗？

import threading
from selenium import webdriver
from selenium.webdriver.common.keys import Keys

# Define a function for the first thread
def thread_one():
    # Initialize the WebDriver instance for the first thread
    driver1 = webdriver.Chrome()
    
    # Navigate to a website and interact with it
    driver1.get("https://www.example.com")
    search_box = driver1.find_element_by_name("q")
    search_box.send_keys("Example")
    search_box.send_keys(Keys.RETURN)
    
    # Close the browser for the first thread
    driver1.quit()

# Define a function for the second thread
def thread_two():
    # Initialize the WebDriver instance for the second thread
    driver2 = webdriver.Chrome()
    
    # Navigate to a different website and interact with it
    driver2.get("https://www.example.org")
    link = driver2.find_element_by_link_text("Link")
    link.click()
    
    # Close the browser for the second thread
    driver2.quit()

# Create two threads
thread1 = threading.Thread(target=thread_one)
thread2 = threading.Thread(target=thread_two)

# Start both threads
thread1.start()
thread2.start()

# Wait for both threads to complete
thread1.join()
thread2.join()

print("Both threads have completed.")

如何确保我的网络驱动器是线程安全的

我的新代码同时打开5个浏览器，这个线程安全吗？

import threading
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
import time 


# ---------------------------------------------------------------------------- #
#                                Selenium set up                               #
# ---------------------------------------------------------------------------- #
chrome_options = webdriver.ChromeOptions()
driver = webdriver.Chrome('drivers\chromedriver.exe',options=chrome_options)


# Function to open a browser and perform actions
def open_browser_and_do_stuff(thread_num):
    # Initialize a new WebDriver instance for this thread
    driver = webdriver.Chrome('drivers\chromedriver.exe',options=chrome_options)

    try:
        # Perform actions with this WebDriver instance
        driver.get("https://whatismyipaddress.com/")
        time.sleep(20)
        search_box = driver.find_element_by_name("q")
        search_box.send_keys("Thread " + str(thread_num))
        search_box.send_keys(Keys.RETURN)
    finally:
        # Ensure the WebDriver instance is properly closed
        driver.quit()

# Number of threads (browsers) to open
num_threads = 5

# Create and start threads
threads = []

for i in range(num_threads):
    thread = threading.Thread(target=open_browser_and_do_stuff, args=(i + 1,))
    threads.append(thread)
    thread.start()

# Wait for all threads to complete
for thread in threads:
    thread.join()

print("All threads have completed.")


# Wait for threads to complete
#thread1.join()
#thread2.join()

Answer 1

您在第一个示例中提供的代码是为每个线程创建单独的 WebDriver 实例的正确方法。

import threading
from selenium import webdriver

def thread_function():
    driver = webdriver.Chrome()
    driver.get("https://www.example.com")
    driver.quit()

thread1 = threading.Thread(target=thread_function)
thread2 = threading.Thread(target=thread_function)
thread1.start()
thread2.start()
thread1.join()
thread2.join()