I realize this is an issue for Yahoo Shopping, not Google, but posting is disabled over at the Yahoo Shopping discussion board, and I have to post it somewhere :).
When I call the Yahoo Shopping API using urlfetch from my app engine app, I always receive a "User-agent not valid" return code. I am guessing Yahoo just doesn't recognize the Google header yet, and have not found a work-around. Response: <?xml version="1.0" encoding="utf-8"?> <Error xmlns="urn:yahoo:api" xmlns:xsi="http://www.w3.org/2001/ XMLSchema-instance" xsi:schemaLocation="urn:yahoo:api http://api.yahoo.com/Api/V1/error.xsd"> The following errors were detected: <Message>User-agent not valid</Message> </Error> --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---