how save photo in telegram python bot?

问题

i want to write a telegram bot that save photos . this is my code , but its not working. and i don't know what is my problem?

def image_handler(bot, update):
    file = bot.getFile(update.message.photo.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()

pleas help me to solve my problem.

回答1:

update.message.photo is an array of photos sizes (PhotoSize objects).

Use file = bot.getFile(update.message.photo[-1].file_id). This will get the image with biggest size available.

来源：https://stackoverflow.com/questions/50388435/how-save-photo-in-telegram-python-bot