from twisted.web import server, resource
from twisted.internet import reactor, defer

class Simple(resource.Resource):
    isLeaf = True
    def render_GET(self, request):
        return "<html>Hello, world!</html>"

def call_me():
    d = defer.Deferred()
    print "Get something"
    return d

def run_web(_):
    print "run_web"
    site = server.Site(Simple())
    reactor.listenTCP(8080, site)

d = call_me()


08.09.15 17:51, Nagy, Attila пишет:

I wonder, if I have this example program:

how do I initialize an external resource (like a dictionary, which is fetched from a database) with asynchronous twisted tools, but before the HTTP server starts listening on its port?
The goal here is that the HTTP server shouldn't start until it can fetch the desired data. Of course I can do this in a synchronous way, but it feels so unnatural and bad practice to fetch the same stuff synchronously on initialization and asynchronously when the program/reactor is running (often with different libraries).


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