python variables in multiline string
toname = "Peter" toemail = "p@tr" subject = "Hi" content = f"""From: Fromname <fromemail> To: {toname} <{toemail}> MIME-Version: 1.0 Content-type: text/html Subject: {subject} This is an e-mail message to be sent in HTML format <b>This is HTML message.</b> <h1>This is headline.</h1> """