[Twisted-Python] session

Sat Feb 15 11:11:40 MST 2003

Hi, 

I did an other litle example to see how can work session. A shop where
you put some articles in your bag...

I do request.getSession() and set attribute directly to the session...
Is it the good way ?

import twisted.web.resource
import cgi

class Shop(twisted.web.resource.Resource):
    """ ReportRequest with forms and cookies """
    articles=("chocolate","banana","apple")
    def isLeaf(self):
        return true
    def render(self, request):
        session = request.getSession()
        try:
            bag = session.bag
        except AttributeError:
            bag = session.bag={}

        try:
            article = request.args["put"][0]
            bag[article] = session.bag.get(article,0)+1
        except KeyError:
            pass # no article to put

        out = []
        out.append("""<html><body>What do you want to put in your bag ?<br>
        <a href='?put=chocolate'>chocolate</a><br>
        <a href='?put=banana'>banana</a><br>
        <a href='?put=apple'>apple</a><br>
        """)
        if len(bag) == 0:
            out.append("Your bag is empty")
        else:
            out.append("You have in your bag :<br>")
            for k,v in bag.items():
                out.append("%d %s<br>"%(v,k))
        return "".join(out)

from twisted.internet import reactor
from twisted.web import static, server

site = server.Site(Shop())
reactor.listenTCP(8080,site)
reactor.run()