Example of partial "function" application on python class using lambdas or functools

functools.py

import http.server as httpserver
import functools

class Handler(httpserver.BaseHTTPRequestHandler):
    _id = 'default'
    _secret = 'default'

    def __init__(self, request, client_addy, server, app_id, app_secret):
        # super().__init__(...) kicks of request handler so set up
        # before calling it
        self._id = app_id
        self._secret = app_secret
        super().__init__(request, client_addy, server)

    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-Type', 'text/plain')
        self.end_headers()
        self.wfile.write((self._id+' '+self._secret).encode('utf-8'))


if __name__ == '__main__':
    id = 'whatever'
    secret = 'shhhh'
    server = httpserver.HTTPServer(
        ('localhost', 9090),
        functools.partial(Handler, app_id=id, app_secret=secret)
    )
    server.serve_forever()

lambdas.py

import http.server as httpserver

class Handler(httpserver.BaseHTTPRequestHandler):
    _id = 'default'
    _secret = 'default'

    def __init__(self, request, client_addy, server, app_id, app_secret):
        # super().__init__(...) kicks of request handler so set up
        # before calling it
        self._id = app_id
        self._secret = app_secret
        super().__init__(request, client_addy, server)

    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-Type', 'text/plain')
        self.end_headers()
        self.wfile.write((self._id+' '+self._secret).encode('utf-8'))


if __name__ == '__main__':
    id = 'whatever'
    secret = 'shhhh'
    server = httpserver.HTTPServer(
        ('localhost', 9090),
        lambda request, client_addy, server: Handler(request, client_addy, server, id, secret)
    )
    server.serve_forever()