import os
import imp

class module_cache(dict):
    def __missing__(self, path):
        name, ext = os.path.splitext(os.path.split(path)[-1])
        if ext in ('.pyc', '.py3c'):
            mod = imp.load_compiled(name, path)
        else:
            mod = imp.load_source(name, path)
        self[path] = value = getattr(mod, 'application')
        return value

cache = module_cache()

def application(environ, start_response):
    return cache[environ['SCRIPT_FILENAME']](environ, start_response)

def launch():
    from flup.server.fcgi import WSGIServer
    WSGIServer(application).run()

def launch_fork():
    from flup.server.fcgi_fork import WSGIServer
    WSGIServer(application).run()