Steve Howell wrote: > Hi, I'm offering a challenge to extend the following > page by one good example: > > http://wiki.python.org/moin/SimplePrograms
What about simple HTML parsing? As a matter of fact this is not language concept, but shows the power of Python standard library. Besides, that's very popular problem among newbies. This program for example shows all the linked URLs in the HTML document: <code> from HTMLParser import HTMLParser page = ''' <html><head><title>URLs</title></head> <body> <ul> <li><a href="http://domain1/page1";>some page1</a></li> <li><a href="http://domain2/page2";>some page2</a></li> </ul> </body></html> ''' class URLLister(HTMLParser): def reset(self): HTMLParser.reset(self) self.urls = [] def handle_starttag(self, tag, attrs): try: # get handler for tag and call it e.g. self.start_a getattr(self, "start_%s" % tag)(attrs) except AttributeError: pass def start_a(self, attrs): href = [v for k, v in attrs if k == "href"] if href: self.urls.extend(href) parser = URLLister() parser.feed(page) parser.close() for url in parser.urls: print url </code> -- Regards, Rob -- http://mail.python.org/mailman/listinfo/python-list
