WTF stands for WT Forms which is intended to provide the interactive user interface for the user. The WTF is a built-in module of the flask which provides an alternative way of designing forms in the flask web applications.
Why WTF Useful?
WTF is useful due to the following factors.
The WT Forms is a flexible, form rendering, and validation library used to provide the user interface.
To use the WT forms, we need to install the flask-wtf library which can be installed using pip installer.
The module contains a Form class which is considered as the parent class for all the form related operations.
The standard form fields are listed below.
Consider the following example.
In this example, we will create a form using flask WTF module. First, we will create a form class named as forms.py and we will import those form elements into the module formexample.py.