将图像发送到机器人时，电报机器人中没有“getFile”属性

Question

I Found this from a 2 years ago post about downloading files and I don't know how to fix this

def image_handler(bot, update):
    file = bot.getFile(update.message.photo[-1].file_id)
    print ("file_id: " + str(update.message.photo.file_id))
    file.download('image.jpg')

updater.dispatcher.add_handler(MessageHandler(Filters.photo, image_handler))
updater.start_polling()
updater.idle()

and the error is "caused error "'Update' object has no attribute 'getFile'" How i can fix this?!

Answer 1

According to the docs for MessageHandler , its second parameter should be a function with this signature:

def callback(update: Update, context: CallbackContext)

You're passing your image_handler function as this parameter, so it is expected to have this same signature. Your handler function's signature doesn't seem to match up with this signature. What your function is labeling bot is an Update object. Your function tries to call getFile on that object, but an Update object does not have a method with that name. So you get the error you're getting.

I can't say why the code you found isn't matching up with the situation in which you're trying to use it, nor can I tell you how to make the code work given just the information you've supplied in your question. You might try reversing the order of the function parameters so that the update parameter accepts incoming Update object, but I don't think that's going to solve your problem, because a CallbackContext object does not have a getFile method either.