我想将我的服务器作为应用程序运行。为此，我有一个MyServer(name, port, host, testMode=False)类（继承自DatagramProtocol对象）。
在另一个文件中，我创建了一些命令来创建和启动我的服务器。或多或少，它看起来像：
from twisted.application import service, internet
name, port, host = #read from database
server = MyServer(name, port, host)
udp_server = internet.UDPServer(port, server)
application = service.Application("MyServer")
udp_server.setServiceParent(application)
values name, port，host我从数据库中读取。我启动我的服务器'twistd -y my_server_run.py'，一切运行完美。
但是，我希望能够以模式启动我的服务器：测试模式和标准模式。因此，我想将从命令行读取的参数作为参数传递给我的对象。我找到了无法将它们解析为 sys.argv 的信息，但我必须实现usage.Options，所以我按照以下方式进行了操作：
from twisted.application import service, internet
from twisted.python import usage
class Options(usage.Options):
optParameters = [["test", "t", False, "The client test mode"]]
options = Options()
name, port, host = #read from database
try:
options.parseOptions()
server = MyServer(name, port, host, testMode=options['test'])
udp_server = internet.UDPServer(port, server)
application = service.Application("MyServer")
udp_server.setServiceParent(application)
然后，我将服务器运行为：
'twistd -y run_client.py --test True'
但是，我收到错误：
option -y not recognized
Unhandled Error
out: Traceback (most recent call last):
out: File "/usr/local/lib/python2.7/dist-packages/twisted/application/app.py", line 648, in run
out: runApp(config)
out: File "/usr/local/lib/python2.7/dist-packages/twisted/scripts/twistd.py", line 25, in runApp
out: _SomeApplicationRunner(config).run()
out: File "/usr/local/lib/python2.7/dist-packages/twisted/application/app.py", line 379, in run
out: self.application = self.createOrGetApplication()
out: File "/usr/local/lib/python2.7/dist-packages/twisted/application/app.py", line 444, in createOrGetApplication
out: application = getApplication(self.config, passphrase)
out: --- <exception caught here> ---
out: File "/usr/local/lib/python2.7/dist-packages/twisted/application/app.py", line 455, in getApplication
out: application = service.loadApplication(filename, style, passphrase)
out: File "/usr/local/lib/python2.7/dist-packages/twisted/application/service.py", line 411, in loadApplication
out: passphrase)
out: File "/usr/local/lib/python2.7/dist-packages/twisted/persisted/sob.py", line 224, in loadValueFromFile
out: value = d[variable]
out: exceptions.KeyError: 'application'
out: Failed to load application: 'application'
out: Could not find 'application' in the file. To use 'twistd -y', your .tac
我无法找出我做错了什么。任何建议都会非常有帮助。