What is the Werkzeug in Flask for?

Question

Flask

Werkzeug is a comprehensive WSGI web application library. It started as a simple collection of various utilities for WSGI applications and has become one of the most advanced WSGI utility libraries.

1) WSGI web application - what do you mean?
2) What are some examples of Werkzeug applications?

Answer 1

WSGI web application - what do you mean?

WSGI is a protocol for communicating between a web server and a web application. Flask is a web application development framework using WSGI. Accordingly, all Flask applications are WSGI web applications.

What are some examples of Werkzeug applications?

I did a search in the catalog with projects, the first sections of code that came across:

from werkzeug.contrib.cache import MemcachedCache
cache = MemcachedCache(['127.0.0.1:11211'])

and

from werkzeug.security import generate_password_hash, check_password_hash

class User(db.Model):
    password = db.Column(db.String(80))

    def __init__(self, username, password, email):
        self.password = generate_password_hash(password)

    def check_password(self, password):
        return check_password_hash(self.password, password)