human
I wrote the below code

    import SimpleHTTPServer, SocketServer, BaseHTTPServer, urlparse
    import socket, errno
    import traceback
    class WSGIHandler(SimpleHTTPServer.SimpleHTTPRequestHandler, ):
        def run_wsgi_app(self):
            (protocol, host, path, parameters, query, fragment) = urlparse.urlparse(('http://dummyhost%s' % self.path))
            env = {'wsgi.version': (1, 0), 'wsgi.url_scheme': 'http', 'wsgi.input': self.rfile, 'wsgi.errors': sys.stderr, 'wsgi.multithread': 1, 'wsgi.multiprocess': 0, 'wsgi.run_once': 0, 'REQUEST_METHOD': self.command, 'REQUEST_URI': self.path, 'PATH_INFO': path, 'QUERY_STRING': query, 'CONTENT_TYPE': self.headers.get('Content-Type', ''), 'CONTENT_LENGTH': self.headers.get('Content-Length', ''), 'REMOTE_ADDR': self.client_address[0], 'SERVER_NAME': self.server.server_address[0], 'SERVER_PORT': str(self.server.server_address[1]), 'SERVER_PROTOCOL': self.request_version}
            for (http_header, http_value) in self.headers.items():
                env[('HTTP_%s' % http_header.replace('-', '_').upper())] = http_value
            self.wsgi_sent_headers = 0
            self.wsgi_headers = []
            try:
                result = self.server.app(env, self.wsgi_start_response)
                try:
                    try:
                        for data in result:
                            if data:
                                self.wsgi_write_data(data)
                    finally:
                        if hasattr(result, 'close'):
                            result.close()
                except socket.error as socket_err:
                    if (socket_err.args[0] in (errno.ECONNABORTED, errno.EPIPE)):
                        return
                except socket.timeout as socket_timeout:
                    return
            except:
                print >>debug, traceback.format_exc(),
                internalerror()
                if (not self.wsgi_sent_headers):
                    self.wsgi_start_response(ctx.status, ctx.headers)
               ...

What's a good function header?
 Give me a Python program to print >>debug, traceback?
assistant
#Here is Python program to print >>debug, traceback.

def runsimple(func, server_address=('0.0.0.0', 8080)):