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# Example webpy.py

     1#!/usr/bin/python
     2# gevent-test-requires-resource: webpy
     3"""A web.py application powered by gevent"""
     4
     5from __future__ import print_function
     6from gevent import monkey; monkey.patch_all()
     7from gevent.pywsgi import WSGIServer
     8import time
     9import web # pylint:disable=import-error
    10
    11urls = ("/", "index",
    12        '/long', 'long_polling')
    13
    14
    15class index(object):
    16    def GET(self):
    17        return '<html>Hello, world!<br><a href="/long">/long</a></html>'
    18
    19
    20class long_polling(object):
    21    # Since gevent's WSGIServer executes each incoming connection in a separate greenlet
    22    # long running requests such as this one don't block one another;
    23    # and thanks to "monkey.patch_all()" statement at the top, thread-local storage used by web.ctx
    24    # becomes greenlet-local storage thus making requests isolated as they should be.
    25    def GET(self):
    26        print('GET /long')
    27        time.sleep(10)  # possible to block the request indefinitely, without harming others
    28        return 'Hello, 10 seconds later'
    29
    30
    31if __name__ == "__main__":
    32    application = web.application(urls, globals()).wsgifunc()
    33    print('Serving on 8088...')
    34    WSGIServer(('', 8088), application).serve_forever()

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