title: flask UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb3 in position 0: invalid start byte
body: <p>I'm learning the flask module 
  I copy the code but it didn't work and give my the UnicodeDecodeError
  <a href="https://i.stack.imgur.com/CqJR4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CqJR4.png" alt="here is the code and error"></a></p>
  
  <p>Thanks for your help</p>