wtforms

A flexible forms validation and rendering library for Python.

wtforms
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Python

WTForms

WTForms is a flexible forms validation and rendering library for Python
web development. It can work with whatever web framework and template
engine you choose. It supports data validation, CSRF protection,
internationalization (I18N), and more. There are various community
libraries that provide closer integration with popular frameworks.

Installation

Install and update using pip:

… code-block:: text

pip install -U WTForms

Third-Party Library Integrations

WTForms is designed to work with any web framework and template engine.
There are a number of community-provided libraries that make integrating
with frameworks even better.

  • Flask-WTF_ integrates with the Flask framework. It can
    automatically load data from the request, uses Flask-Babel to
    translate based on user-selected locale, provides full-application
    CSRF, and more.
  • WTForms-Alchemy_ provides rich support for generating forms from
    SQLAlchemy models, including an expanded set of fields and
    validators.
  • WTForms-SQLAlchemy_ provides ORM-backed fields and form generation
    from SQLAlchemy models.
  • WTForms-Bootstrap5_ provides Bootstrap 5 favor renderer with
    great customizability.
  • Starlette-WTF_ integrates with Starlette and the FastAPI
    framework, based on the features of Flask-WTF.
  • Bootstrap-Flask_ Bootstrap-Flask is a collection of Jinja macros
    for Bootstrap 4 & 5 and Flask using Flask-WTF.

… _Flask-WTF: https://flask-wtf.readthedocs.io/
… _WTForms-Alchemy: https://wtforms-alchemy.readthedocs.io/
… _WTForms-SQLAlchemy: https://github.com/pallets-eco/wtforms-sqlalchemy
… _WTForms-Bootstrap5: https://github.com/LaunchPlatform/wtforms-bootstrap5
… _Starlette-WTF: https://github.com/muicss/starlette-wtf
… _Bootstrap-Flask: https://github.com/helloflask/bootstrap-flask

Links