What are the disadvantages of the wsgiref module for implementing WSGI in Python?

The wsgiref module in Python is a standard implementation of a WSGI server and utilities for web application development. Its main drawbacks:

• Performance: wsgiref is not optimized for high loads and is not suitable for production environments.
• Lack of support for multithreading and asynchronous operations: the server runs in a single-threaded mode, which limits scalability.
• Minimal functionality: it is a basic server for testing and development, without advanced features (e.g., SSL, connection management).

Therefore, for real projects, more efficient and feature-rich WSGI servers such as Gunicorn, uWSGI, or Waitress are usually used.