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  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2006-01-16 19:56:10 UTC
  • mfrom: (1.1.3 upstream)
  • Revision ID: james.westby@ubuntu.com-20060116195610-ykmxbia4mnnod9o2
Tags: 2.1.0-0ubuntu2
debian/copyright: Include copyright for python 2.3; some 2.3 files
are included in the upstream tarball, but not in the binary packages.

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doc/web/examples/lj.rpy.py
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# Copyright (c) 2001-2004 Twisted Matrix Laboratories.
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# See LICENSE for details.
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#
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# Syndicate LiveJournal users
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# Demonstrates how to use chained callbacks
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from __future__ import nested_scopes
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from twisted.web import resource as resourcelib
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from twisted.web import client, microdom, domhelpers, server
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urlTemplate = 'http://www.livejournal.com/users/%s/rss'
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class LJSyndicatingResource(resourcelib.Resource):
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    def render_GET(self, request):
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        url = urlTemplate % request.args['user'][0]
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        client.getPage(url).addCallback(
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        microdom.parseString).addCallback(
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        lambda t: domhelpers.findNodesNamed(t, 'item')).addCallback(
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        lambda itms: zip([domhelpers.findNodesNamed(x, 'title')[0]
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                                                               for x in itms],
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                         [domhelpers.findNodesNamed(x, 'link')[0]
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                                                               for x in itms]
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                        )).addCallback(
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        lambda itms: '<html><head></head><body><ul>%s</ul></body></html>' %
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                          '\n'.join(
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               ['<li><a href="%s">%s</a></li>' % (
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                  domhelpers.getNodeText(link), domhelpers.getNodeText(title))
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                       for (title, link) in itms])
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        ).addCallback(lambda s: (request.write(s),request.finish())).addErrback(
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        lambda e: (request.write('Error: %s' % e),request.finish()))
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        return server.NOT_DONE_YET
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resource = LJSyndicatingResource()