极速 Twisted Web 60秒(5): 错误句柄

[cc lang="python"]
from twisted.web.server import Site
from twisted.web.resource import Resource
from twisted.internet import reactor
from twisted.web.error import NoResource

from calendar import calendar

class YearPage(Resource):
def __init__(self, year):
Resource.__init__(self)
self.year = year

def render_GET(self, request):
return "

%s

" % (calendar(self.year),)

class Calendar(Resource):
def getChild(self, name, request):
try:
year = int(name)
except ValueError:
return NoResource()
else:
return YearPage(year)

root = Calendar()
factory = Site(root)
reactor.listenTCP(8880, factory)
reactor.run()
[/cc]