After downloading some datasets and loading them into google colan using an appropriate method and combining them into panda data structures how do you rename the identifiers to a simpler format eg emails to a format like ID$001$ and keep mapping from new name to old name as a dictionary.

Question $2.$Using python code How do you concatenate text for each individual in data that has some chats of people chatting i$.$e taking all the texts of ome person and concatenating them.

Question $3.$ In python code how do you use the "from" and $"$to$"$ fields to create a list of weighted edges or connections.