Python thrift with tornado示例服务器引发异常

我正在运行官方的thrift py:tornado演示，在客户端关闭传输后引发了异常

例如：

---

有没有办法避免此错误消息或如何捕获它？

许多原因都会导致

StreamClosedError

检查thrift服务器端，可能会引发异常

测试后，我发现thrift

THttpServer

无法为Tornado客户端流提供服务

而且，当我将tornado版本从4.4.3升级到4.5时，

StreamClosedError

就会消失 客户端旧版本：0.10.0

龙卷风版本：4.5

客户端Python版本：3.5.2

系统版本：Ubuntu 16.04

Starting the server...
ping()
add(1, 1)
zip()
zip()
calculate(1, Work(comment=None, num1=1, num2=0, op=4))
calculate(1, Work(comment=None, num1=15, num2=10, op=2))
getStruct(1)
ERROR:thrift.TTornado:thrift exception in handle_stream
Traceback (most recent call last):
  File "/Users/user/venv/py27/lib/python2.7/site-packages/thrift/TTornado.py", line 174, in handle_stream
    frame = yield trans.readFrame()
  File "/Users/user/venv/py27/lib/python2.7/site-packages/tornado/gen.py", line 1008, in run
    value = future.result()
  File "/Users/user/venv/py27/lib/python2.7/site-packages/tornado/concurrent.py", line 232, in result
    raise_exc_info(self._exc_info)
  File "/Users/user/venv/py27/lib/python2.7/site-packages/tornado/gen.py", line 1014, in run
    yielded = self.gen.throw(*exc_info)
  File "/Users/user/venv/py27/lib/python2.7/site-packages/thrift/TTornado.py", line 141, in readFrame
    raise gen.Return(frame)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/contextlib.py", line 35, in __exit__
    self.gen.throw(type, value, traceback)
  File "/Users/user/venv/py27/lib/python2.7/site-packages/thrift/TTornado.py", line 125, in io_exception_context
    message=str(e))
TTransportException: Stream is closed