How encrypt email with a GnuPG public key ?

Hi,

I'm already using

 python

    
from smtplib import SMTP_SSL
from email.message import EmailMessage


  

To send emails.

Now I would like to be able to encrypt them with the public key of the recipient. ( PublicKey.asc )

I like the approach, only one "low level" import cryptography

but the code seem wrong. if the body has been encrypted as ciphertext I don't see this one included while sending the email.

How are you doing it ? or do you have good tutorial, documentations ? because I found nothing "pure and simple" meaning not with of unnecessary stuff.

Thanks.