RSA encryption in PYTHON. How to initially generate a public key, and on another device, having a public key, generate a private one?

Question

Python

It is necessary to generate a public key using it to encrypt information and then send a public key to another device and use the public key to generate a private key and decrypt the text

Answer 1

You don't understand the meaning of the keys. If one key could be used to restore the second, then they would not provide any protection.
The correct scheme looks like this:
Device A generates a key pair and shares the public key.
Device B downloads the public key, encrypts the document with it, and sends it to device A.
Device A, using the paired private key, decrypts the document.

Answer 2

Answer 3

Do this - and all the hackers of the world will erect a monument to you. From pure gold. It is impossible
to restore the second key from one key . Google about public key cryptography.