config.py

from db import Database
from getpass import getpass
from web3 import Web3

class Connect:
    def __init__(self):
        bsc = "https://bsc-dataseed.binance.org/"
        self.web3 = Web3(Web3.HTTPProvider(bsc))


        self.db = Database()
    def make_connection(self):

        address = self.db.get_address()

        if address:

            addr = address[0]

        else:

            print("Can't find active address at database, insert you bsc address here...")

            while True:

                addr = input('Address: ')
                key =  getpass('Key: ')

                try:
                    self.web3.eth.get_balance(addr)
                except Exception as e:
                    print("Can't connect to blockchain: ",e,", check if address and network is correct")
                    
                else:
                    self.db.store_address(addr,key)
                    break

        return addr