using encrypted password from config.ini file and decrypt it to be used in the main script

Question

I have a general question. My code is running fine and there are no errors. My question is I have written the key and the encrypted password in the configfile like below:

[credentials]
key = d25vYTghWVgkTQWrMFnwW1tfKtn_lWzDr2JJM95f2fs=
encrypted_password = gAAAAABkLyRCekwyD5p5MMmaNxee6quDhlv9zx5e6Qghfv6jjubsGtP5m5F8YaB1LEPBq90-ab1VxK5oqOHmNStNbulSBMCtXQ==

Now I am deriving the key and encrypted password from config file and decrypting the password. I know this is not the right way anyone can use the key and decrypt the password. Is there anyway that without exposing the key I can decrypt the password.