Question

I’m a python beginner, and I’m curious how can I send a dictionary through TCP

Answer 1

You should serialize it with pickle:

import pickle
dict = {...}
tcp_send(pickle.dumps(dict))

And on the other end:

import pickle
dict = pickle.loads(tcp_recieve())

If the other end is not written in python, you can use a data serialization format, like xml, json or yaml.