pychrome

import pychrome import os import subprocess import time # --- Step 1: Ensure Chrome is running with remote debugging enabled --- # This command typically opens Chrome (or a headless instance) on port 9222. # Adjust the path to your Chrome executable if needed. # For headless mode: 'google-chrome --headless --disable-gpu --remote-debugging-port=9222' # Check if Chrome is already running on the debug port try: # Attempt to connect to check if a browser is already listening _ = pychrome.Browser(url="http://127.0.0.1:9222").list_tab() print("Chrome with remote debugging already running.") except Exception: print("Starting Chrome with remote debugging...") # Example for Linux/macOS. Adjust for Windows (e.g., 'start chrome.exe ...') # Using os.environ.get for robustness in different environments chrome_cmd = os.environ.get('CHROME_EXECUTABLE', 'google-chrome') try: # Start Chrome in headless mode for automation subprocess.Popen([chrome_cmd, '--headless', '--disable-gpu', '--remote-debugging-port=9222'], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL) time.sleep(2) # Give Chrome a moment to start up except FileNotFoundError: print(f"Error: Chrome executable '{chrome_cmd}' not found. Please set CHROME_EXECUTABLE environment variable or ensure Chrome is in your PATH.") exit(1) # --- Step 2: Connect to Chrome and perform actions --- browser = pychrome.Browser(url="http://127.0.0.1:9222") # List existing tabs or create a new one tabs = browser.list_tab() if not tabs: tab = browser.new_tab() else: # Use the first available tab, or iterate to find a specific one tab = tabs[0] def request_will_be_sent(**kwargs): """Callback function to print URLs of outgoing requests""" url = kwargs.get('request', {}).get('url') if url: print(f" Loading: {url}") try: print(f"Interacting with tab: {tab.id}") tab.start() tab.Network.enable() tab.Network.requestWillBeSent = request_will_be_sent # Register callback print("Navigating to example.com...") tab.Page.navigate(url="https://www.example.com", _timeout=5) tab.wait(5) # Wait for page to load events for 5 seconds # Execute some JavaScript on the page result = tab.Runtime.evaluate(expression="document.title") print(f"Page title: {result['result']['value']}") finally: # Clean up: stop the tab and close it if tab: tab.stop() browser.close_tab(tab.id) print(f"Closed tab: {tab.id}") # In a real application, you might also want to close the browser process # if it was started by your script, but care is needed not to close # a user's active browser session.