What is WSGI? The Web Server Gateway Interface (Web Server Gateway Interface, WSGI) has been used as a standard for Python web application development. WSGI is the specification of a common interface between web servers and web applications.
What is Werkzeug? Werkzeug is a WSGI toolkit that implements requests, response objects, and utility functions. This enables a web frame to be built on it. The Flask framework uses Werkzeg as one of its bases.
What is Jinja2? Jinja2 is a popular template engine for Python. A web template system combines a template with a specific data source to render a dynamic web page. This allows you to pass Python variables into HTML.