Random Photo Fetch from Chat using Telethon

This function uses the Telethon library to randomly fetch a photo from a specified chat. It first retrieves the last 100 messages, then filters out messages containing photos, and finally randomly selects one photo to return.

Technology Stack : Telethon, Python

Code Type : Telethon third-party library functions

Code Difficulty : Intermediate

                
                    
def get_random_chat_photo(client, chat):
    """
    Fetches a random photo from a chat using Telethon.

    Args:
        client (telethon.client.client.Session): The client instance.
        chat (telethon.tl.types.InputPeerChat): The chat from which to fetch the photo.

    Returns:
        telethon.tl.types.PhotoSize: The photo size object.
    """
    messages = client.get_messages(chat, limit=100)  # Fetch the last 100 messages
    photos = [msg.photo for msg in messages if msg.photo]  # Filter messages with photos
    if photos:
        random_photo = random.choice(photos)  # Select a random photo
        return random_photo
    else:
        return None