Is There Any Way To Use Variables In Multiline String In Python?

So I have this as part of a mail sending script: try: content = ('''From: Fromname To: Toname MIME-Version: 1.0 Content-type: text

Solution 1:

Using the .format method:

content = """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>
"""
mail.sendmail('from', 'to', content.format(toname="Peter", toemail="p@tr", subject="Hi"))

Once that last line gets too long, you can instead create a dictionary and unpack it:

peter_mail = {
    "toname": "Peter",
    "toemail": "p@tr",
    "subject": "Hi",
}
mail.sendmail('from', 'to', content.format(**peter_mail))

---

As of Python 3.6, you can also use multi-line f-strings:

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>
"""