wsgi.py

#!/usr/bin/env python

# This file may be used instead of Apache mod_wsgi to run your python
# web application in a different framework.  A few examples are
# provided (cherrypi, gevent), but this file may be altered to run
# whatever framework is desired - or a completely customized service.
#
import imp
import os
import sys

try:
    virtenv = os.path.join(os.environ.get('OPENSHIFT_PYTHON_DIR', '.'), 'virtenv')
    python_version = "python" + str(sys.version_info[0]) + "." + str(sys.version_info[1])
    os.environ['PYTHON_EGG_CACHE'] = os.path.join(virtenv, 'lib', python_version, 'site-packages')
    virtualenv = os.path.join(virtenv, 'bin', 'activate_this.py')
    if (sys.version_info[0] < 3):
        execfile(virtualenv, dict(__file__=virtualenv))
    else:
        exec (open(virtualenv).read(), dict(__file__=virtualenv))

except IOError:
    pass

#
# IMPORTANT: Put any additional includes below this line.  If placed above this
# line, it's possible required libraries won't be in your searchable path
#

from main import app as application

#
#  main():
#
if __name__ == '__main__':
    application = imp.load_source('app', 'main.py')
    port = application.app.config['PORT']
    ip = application.app.config['IP']
    app_name = application.app.config['APP_NAME']
    host_name = application.app.config['HOST_NAME']

    fwtype = "wsgiref"
    for fw in ("gevent", "cherrypy", "flask"):
        try:
            imp.find_module(fw)
            fwtype = fw
        except ImportError:
            pass

    print('Starting WSGIServer type %s on %s:%d ... ' % (fwtype, ip, port))
    if fwtype == "gevent":
        from gevent.pywsgi import WSGIServer

        WSGIServer((ip, port), application.app).serve_forever()

    elif fwtype == "cherrypy":
        from cherrypy import wsgiserver

        server = wsgiserver.CherryPyWSGIServer(
            (ip, port), application.app, server_name=host_name)
        server.start()

    elif fwtype == "flask":
        from flask import Flask

        server = Flask(__name__)
        server.wsgi_app = application.app
        server.run(host=ip, port=port)

    else:
        from wsgiref.simple_server import make_server

        make_server(ip, port, application.app).serve_forever()