Hi @Luca-Innocenti I presume you mean twitter? I haven't heard of tweepy but I think a good way to do this would be to use the MQTT blocks if you are using UIFlow and then connect to a service like IFTT or Thingspeak with webhooks to connect to twitter. To add new libraries to the m5stack you can use Ampy or the M5stack plugin for VScode. See one of the two following videos for how to get setup.
Ampy
https://www.youtube.com/watch?v=rvP3GixWG1Y&t=109s