Flask Value error view function did not return a response [duplicate]
Solution 1:
The following does not return a response:
You must return anything like return afunction() or return 'a string'.
This can solve the issue
Solution 2:
You are not returning a response object from your view my_form_post. The function ends with implicit return None, which Flask does not like.
Make the function my_form_post return an explicit response, for example
return 'OK'
at the end of the function.