escapes untrusted input when rendering templates to avoid injection attacks. ItsDangerous [https://palletsprojects.com/p/itsdangerous/] securely signs data to ensure its integrity. This is used to protect Flask’s click 6.7 Flask 1.0 flaskr 1.0.0 /home/user/Projects/flask-tutorial itsdangerous 0.24 Jinja2 2.10 MarkupSafe 1.0 pip 9.0.3 setuptools 39.0.1 Werkzeug com/p/click/], Werkzeug [https://palletsprojects.com/p/werkzeug/], and ItsDangerous [https://palletsprojects.com/p/itsdangerous/] behind the scenes, and they all have their own documentation too. You’ll