title: how do i make my python break when a certain input is made
body: <p>So I am just trying to write some stuff in python and I need to make this code loop until "Yes" or "yes" is specified but it keeps breaking even when "Yes" or "yes" is not specified. Please help me fix this, and thanks in advance.</p>
  
  <pre><code>print("Please now take the time to fill in your DOB:")
  DOB_day = raw_input ("Date of month:")
  DOB_month = raw_input ("Month:")
  DOB_year = raw_input ("Year:")
  
  DOB_confirmation = raw_input ("Please confirm, is this correct?")
  
  
  while DOB_confirmation != "No" or "no":
      DOB_day = raw_input ("Date of month:")
      DOB_month = raw_input ("Month:")
      DOB_year = raw_input ("Year:")
      DOB_confirmation = raw_input ("Please confirm, is this correct?")
      if DOB_confirmation == "Yes" or "yes":
          break
  </code></pre>