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1 from webob import Response
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2 from lxml import etree
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3 from lxmlmiddleware.middleware import LXMLMiddleware
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4 from paste.httpexceptions import HTTPExceptionHandler
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5
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6 def example_app(environ, start_response):
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7 return Response('<html><body>Hello, world!</body></html>')(environ, start_response)
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8
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9 class ExampleMiddleware(LXMLMiddleware):
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10 def manipulate(self, environ, tree):
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11 tree.append(etree.XML('<div><i>How are you doing?</i></div>'))
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12 return tree
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13
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14 class ExampleMiddleware2(LXMLMiddleware):
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15 def manipulate(self, environ, tree):
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16 tree.append(etree.XML("<div><b>I'm doing find, thank you!</b></div>"))
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17 return tree
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18
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19 def factory(global_conf, **app_conf):
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20 """create a webob view and wrap it in middleware"""
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21 return HTTPExceptionHandler(ExampleMiddleware2(ExampleMiddleware(example_app)))
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22
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