title: SyntaxError in MIMEText and sqlite
body: <p>This code send a notification about new article which is stored in database specified earlier in my program (this is element of RSS feeder).</p>
  
  <pre><code>def send_notification(article_title, article_url):
      smtp_server=smtplib.SMTP('smtp.gmail.com', 587)
      smtp_server.ehlo()
      smtp_server.starttls()
      smtp_server.login('your_email@gmail.com','password')
      msg = MIMEText(f'\nHi, this is new article: {article_title}. \nYou can read this in {article_url}')
  msg['Subject']='New article is available'
  msg['From']='your_email@gmail.com'
  msg['To']='destination_email@gmail.com'
  smtp_server.send_message(msg)
  smtp_server.quit()
  </code></pre>
  
  <p>I receive a message "SyntaxError: invalid syntax" for line:</p>
  
  <pre><code>msg = MIMEText(f'\nHi, this is new article: {article_title}. \nYou can read this in {article_url}')
  </code></pre>
  
  <p>I think it is caused by {} parentheses.
  Could anyone help me to fix it? </p>
  
  <p>PS I work in Python3.</p>