This python script will take any YouTube URL in the clipboard & go out and grab the transcript (if available) and put it directly into the clipboard for pasting.

gistfile1.txt

#!/usr/bin/env python3

# This python script will take any YouTube URL in the clipboard & go out and grab the transcript (if available) and put it directly into the clipboard for pasting.

import pyperclip
from youtube_transcript_api import YouTubeTranscriptApi
import re
import tkinter as tk

def get_video_id(url):
    video_id = re.search(r"(?<=v=)[^&#]+", url)
    if not video_id:
        video_id = re.search(r"(?<=be/)[^&#]+", url)
    return video_id.group(0) if video_id else None

def fetch_transcript(video_id):
    try:
        transcript = YouTubeTranscriptApi.get_transcript(video_id)
        transcript_text = "\n".join([entry['text'] for entry in transcript])
        return transcript_text
    except Exception as e:
        raise Exception(f"Error fetching transcript: {e}")

def show_error(error_message):
    def copy_to_clipboard():
        pyperclip.copy(error_message)

    root = tk.Tk()
    root.title("Script Error")
    
    text = tk.Text(root, wrap=tk.WORD, height=10, width=50)
    text.insert(tk.END, error_message)
    text.config(state=tk.DISABLED)
    text.pack()

    button = tk.Button(root, text="Copy to Clipboard", command=copy_to_clipboard)
    button.pack()

    root.mainloop()

def main():
    try:
        url = pyperclip.paste().strip()
        
        if not re.match(r'^(https?\:\/\/)?(www\.youtube\.com|youtu\.?be)\/.+$', url):
            raise ValueError("Clipboard content is not a valid YouTube URL.")
        
        video_id = get_video_id(url)
        if video_id:
            transcript = fetch_transcript(video_id)
            pyperclip.copy(transcript)
            print("Transcript copied to clipboard.")
        else:
            raise ValueError("Could not extract video ID from the URL.")
    
    except Exception as e:
        show_error(str(e))

if __name__ == "__main__":
    main()