I keep getting this error using smtplib?

I'm trying to use this simple script to send emails but I keep getting this error, can anyone help me out.

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Try adding smtp.quit() at the end?

I already tried that and unfortunately no luck

Have you allowed less secure apps for your gmail account?
click here to learn more.
Good luck!

BTW, in your repl, the email and password does not appear to be even close to real. Make sure they are legitimate keys, and if you need, use a private repl :)

Yea I have a private repl with my actual keys, I just didn't share that one. I have less secure apps allowed. I'm just confused as to why I am still getting these errors.

Still getting this error for me too a year later :(