Fix some import errors with the quart framework that was preventing the HTTP2 server from starting. This closes
import system_test
import os
from quart import Quart, request
+try:
from quart.static import send_file
+except ImportError:
+ from quart.helpers import send_file
+
+try:
from quart.exceptions import HTTPStatusException
+except ImportError:
+ from werkzeug.exceptions import InternalServerError as HTTPStatusException
+
import json
app = Quart(__name__)
