Binary package “python3-wtforms” in ubuntu xenial

flexible forms validation and rendering library for Python 3

 WTForms is a HTML form field generator which allows full customization
 with templates, using the template engine of your choice. It also allows
 one to create forms based on ORM models from Django, SqlAlchemy and the
 Google Appengine.
 .
 This package contains the module for Python 3.