wsgi_example.py

# http://wsgi.tutorial.codepoint.net/environment-dictionary

# =================================================================
# THE WSGI APPLICATION
# =================================================================

def simple_app(environ, start_response):
    status = '200 OK'
    response_headers = [
        ('Content-type', 'text/plain'),
        ('X-Secret', 'xyzzy'),
    ]
    body = b"Hello world!!!!!!!!!\n"

    start_response(status, response_headers)

    return [body]


# =================================================================
# CREATE A WSGI SERVER
# =================================================================

from wsgiref.simple_server import make_server

# Instantiate the server
HOST = 'localhost'
PORT = 8765

httpd = make_server(HOST, PORT, simple_app)

print("Serving on http://{}:{}/".format(HOST, PORT))

# start serving
httpd.serve_forever()