用python自动下载TG频道指定时长的视频

import os
import asyncio
from telethon import TelegramClient

# 填入你的 api_id 和 api_hash
api_id = 12345
api_hash = '0123456789abcdef0123456789abcdef'

# 填入你的 Telegram 用户名和密码
username = 'my_username'
password = 'my_password'

# 填入频道的名字
channel_name = '@my_channel'

# 设定要下载的视频的最大时长（秒）
max_duration = 60

# 创建 TelegramClient
client = TelegramClient(username, api_id, api_hash, update_workers=4, spawn_read_thread=False)

# 开启 client
client.start()

# 获取频道
channel = client.get_entity(channel_name)

# 创建下载目录
download_dir = os.path.join(os.getcwd(), 'Telegram_Videos')
if not os.path.exists(download_dir):
    os.mkdir(download_dir)

# 获取频道里的视频
async def get_channel_videos():
    # 获取频道里的所有消息
    messages = await client.get_messages(channel, limit=None)
    # 遍历所有消息
    for message in messages:
        # 判断消息是否是视频
        if message.video:
            # 获取视频的时长
            duration = message.video.duration
            # 判断视频时长是否符合要求
            if duration <= max_duration:
                # 获取视频的文件名
                filename = message.file.name
                # 下载视频
                await message.download_media(file=os.path.join(download_dir, filename))
                print('下载成功：', filename)

# 运行
asyncio.get_event_loop().run_until_complete(get_channel_videos())