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+"""
+Tutorial - Object inheritance
+
+You are free to derive your request handler classes from any base
+class you wish. In most real-world applications, you will probably
+want to create a central base class used for all your pages, which takes
+care of things like printing a common page header and footer.
+"""
+
+import cherrypy
+
+
+class Page:
+ # Store the page title in a class attribute
+ title = 'Untitled Page'
+
+ def header(self):
+ return '''
+ <html>
+ <head>
+ <title>%s</title>
+ <head>
+ <body>
+ <h2>%s</h2>
+ ''' % (self.title, self.title)
+
+ def footer(self):
+ return '''
+ </body>
+ </html>
+ '''
+
+ # Note that header and footer don't get their exposed attributes
+ # set to True. This isn't necessary since the user isn't supposed
+ # to call header or footer directly; instead, we'll call them from
+ # within the actually exposed handler methods defined in this
+ # class' subclasses.
+
+
+class HomePage(Page):
+ # Different title for this page
+ title = 'Tutorial 5'
+
+ def __init__(self):
+ # create a subpage
+ self.another = AnotherPage()
+
+ def index(self):
+ # Note that we call the header and footer methods inherited
+ # from the Page class!
+ return self.header() + '''
+ <p>
+ Isn't this exciting? There's
+ <a href="./another/">another page</a>, too!
+ </p>
+ ''' + self.footer()
+ index.exposed = True
+
+
+class AnotherPage(Page):
+ title = 'Another Page'
+
+ def index(self):
+ return self.header() + '''
+ <p>
+ And this is the amazing second page!
+ </p>
+ ''' + self.footer()
+ index.exposed = True
+
+
+import os.path
+tutconf = os.path.join(os.path.dirname(__file__), 'tutorial.conf')
+
+if __name__ == '__main__':
+ # CherryPy always starts with app.root when trying to map request URIs
+ # to objects, so we need to mount a request handler root. A request
+ # to '/' will be mapped to HelloWorld().index().
+ cherrypy.quickstart(HomePage(), config=tutconf)
+else:
+ # This branch is for the test suite; you can ignore it.
+ cherrypy.tree.mount(HomePage(), config=tutconf)
+