title: unsupported operand type(s) for -: 'str' and 'datetime.datetime'
body: <p>I'm trying to write a Python script to count down to my next birthday. Unfortunately, I keep getting this error message stating</p>
  <blockquote>
  <p>unsupported operand type(s) for -: 'str' and 'datetime.datetime'</p>
  </blockquote>
  <p>Any help would be appreciated. Here's my code:</p>
  <pre><code>import datetime
  
  birthday = input('Please enter your birthday(mm/dd/yyyy): ')
  birthdate = datetime.datetime.strptime(birthday,'%m/%d/%Y').date()
  
  currentDate = datetime.datetime.today()
  
  days = birthday - currentDate
  print(days)
  </code></pre>