django-admin startproject xx

django-admin startproject xx

django.bin.django-admin

django.core.management execute_from_command_line ManagementUtility.execute CommandParser django.setup() @TODO ManagementUtility.autocomplete @pass ManagementUtility.fetch_command(subcommand).run_from_argv(self.argv) # fetch_command(sys.argv[1]=’startproject’) get_commands() ‘django.core(@TODO).management.commands’

python manager.py runserver

django.core.management 同上 django.core.management.commands.runserver.Command run_from_argv execute handle run inner_run get_handler-> django.core.servers.basehttp.get_internal_wsgi_application default/project.wsgi.py-> django.core.wsgi.get_wsgi_application django.core.handlers.wsgi.WSGIHandler init self.load_middleware() # join together into a chain handler = convert_exception_to_response(self._get_response) for middleware in settings.MIDDLEWARE: mw_instance = middleware(handler) handler = convert_exception_to_response(mw_instance) self._middleware_chain = handler call request = self.request_class(environ) pass response = self.get_response(request) response = self._middleware_chain(request)

django.core.servers.basehttp.run()
	httpd = httpd_cls(server_address, WSGIRequestHandler, ipv6=ipv6)
		__init__
	httpd.set_app(wsgi_handler)
	httpd.serve_forever()
		# http.server.HTTPServer
		# socketserver.TCPServer
		# socketserver.BaseServer
		__init__
			self.socket = socket.socket
			self.server_bind
				self.socket.bind
			self.server_activate
				self.socket.listen
			self.server_close
				self.socket.close
		run_forever
			selector.select(poll_interval)
			self._handle_request_noblock()
				get_request
					self.socket.accept
				process_request
					# 请求处理
					finish_request: self.RequestHandlerClass=WSGIRequestHandler(request)
						@TODO: WSGIRequestHandler.handle()
					handle_error
					shutdown_request
				shutdown_request
				handle_error
			self.service_actions()
				# 请求结束后的额外工作
				collect_children