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# sample calling Amazon WSDL-based web service

# requires subscription id from amazon.com
from sys import argv
if len(argv)==1:
    print "This sample needs an Amazon.com subscription ID passed to it from the command line!"
    from sys import exit
    exit(1)
else:
    subscriptionId = argv[1]

searchString = 'Python Programming'

if subscriptionId is None:
    raise RuntimeError, 'Amazon subscription id is required to run this sample'

import clr
clr.AddReference("DynamicWebServiceHelpers.dll")
from DynamicWebServiceHelpers import *

print 'loading web service'
ws = WebService.Load('http://webservices.amazon.com/AWSECommerceService/AWSECommerceService.wsdl')

print 'composing data for web service request'
sr = ws.ServiceNamespace.ItemSearchRequest()
sr.Keywords = searchString
sr.SearchIndex = 'Books'
sr.ResponseGroup = tuple(['ItemAttributes'])
sr.ItemPage = '1'
s = ws.ServiceNamespace.ItemSearch()
s.SubscriptionId = subscriptionId
s.AssociateTag = ''
s.Request = tuple([ sr ])

print 'calling web service'
r = ws.ItemSearch(s)

print 'search for "%s": %s results (%s pages):' % (searchString, r.Items[0].TotalResults, r.Items[0].TotalPages)
page = 1
while r <> None and r.Items[0] <> None and r.Items[0].Item <> None:
    for book in r.Items[0].Item:
        print '   %s' % (book.ItemAttributes.Title)
    page = page+1
    sr.ItemPage = str(page)
    r = ws.ItemSearch(s)