使用Python实现TradingView图表自动化操作咨询：截图、按下向下键及股票切换流程

Hey there! No worries at all about grammar or being new to Python/Stack Overflow—we all start somewhere, and your request is totally clear. Let's put together a script that does exactly what you need using pyautogui (a great library for simulating keyboard/mouse actions and screenshots) and Python's built-in time module.

Step 1: Install Required Library #

First, you'll need to install pyautogui if you haven't already. Open your terminal/command prompt and run:

pip install pyautogui

Step 2: The Automation Script #

Here's a complete, commented script that matches your requirements. I'll explain each part so you understand what's happening:

import pyautogui
import time

# Optional: Set a small delay between pyautogui actions to avoid overwhelming the system
pyautogui.PAUSE = 0.5

def process_single_stock():
    # 1. Take first screenshot (using timestamp to ensure unique filenames)
    first_snap = pyautogui.screenshot()
    first_snap.save(f"stock_initial_{int(time.time())}.png")
    
    # 2. Press the Down arrow key to adjust the chart
    pyautogui.press('down')
    
    # 3. Take second screenshot after pressing Down
    second_snap = pyautogui.screenshot()
    second_snap.save(f"stock_after_down_{int(time.time())}.png")
    
    # 4. Wait 3 seconds before switching to the next stock
    time.sleep(3)

# Example: Process 5 stocks (adjust the number to match your needs)
for _ in range(5):
    process_single_stock()
    # Switch to next stock: Replace this with your actual shortcut!
    # Common options: Ctrl+Tab (if using browser tabs) or TradingView's custom shortcut
    pyautogui.hotkey('ctrl', 'tab')

Key Notes & Adjustments #

• Stock Switch Shortcut: The pyautogui.hotkey('ctrl', 'tab') line is a placeholder. You’ll need to replace this with the actual shortcut you use to switch stocks in TradingView (e.g., alt+right if you use a custom key combo, or whatever works for your setup).
• Screenshot Naming: Timestamps (int(time.time())) ensure no screenshots overwrite each other. Feel free to tweak the filename format (e.g., add stock symbols if you have a list to reference).
• Active Window: Make sure the TradingView chart window is the foreground, active window when you run the script—otherwise, pyautogui will send actions to whatever window is on top.
• Safety Fail-Safe: If the script acts unexpectedly, quickly move your mouse to the top-left corner of the screen. PyAutoGUI has a built-in fail-safe that stops the script when the mouse hits this spot.

Troubleshooting Tips #

• If screenshots won’t save, check that you have write permissions in the folder where you’re running the script.
• If keyboard presses don’t register, try increasing pyautogui.PAUSE to 1.0—this gives the system more time to process each action.
• For large batches of stocks, you could expand the script to read stock symbols from a text file and loop through them, but this basic version is perfect for getting started.

Don’t hesitate to ask follow-up questions if something doesn’t work—we’re here to help!

内容的提问来源于stack exchange，提问作者NOWNEVER