TelegramDeprecationWarning python telegram bot code example
Example: Old Handler API is deprecated - see https://git.io/fxJuV for details
#Warning in gdgpisausermanager.py. See https://git.io/fxJuV for details.
#Adding
use_context=True
#in
updater = Updater(token = token, use_context=True)
#as suggested seems broking the bot (at least on Docker).