NoneType object has no attribute pause #54
Description
I have no explicit pause / unpause logic in my code but I reliably get this after the first value dribbles through the tube:
2017-05-02T13:49:41-0400 [twisted.internet.defer#critical]
Traceback (most recent call last):
File "/home/exarkun/Environments/kubetop/local/lib/python2.7/site-packages/twisted/internet/defer.py", line 651, in _runCallbacks
current.result = callback(current.result, *args, **kw)
File "/home/exarkun/Environments/kubetop/local/lib/python2.7/site-packages/twisted/internet/defer.py", line 1030, in _cbDeferred
self.callback(self.resultList)
File "/home/exarkun/Environments/kubetop/local/lib/python2.7/site-packages/twisted/internet/defer.py", line 457, in callback
self._startRunCallbacks(result)
File "/home/exarkun/Environments/kubetop/local/lib/python2.7/site-packages/twisted/internet/defer.py", line 565, in _startRunCallbacks
self._runCallbacks()
--- <exception caught here> ---
File "/home/exarkun/Environments/kubetop/local/lib/python2.7/site-packages/twisted/internet/defer.py", line 651, in _runCallbacks
current.result = callback(current.result, *args, **kw)
File "/home/exarkun/Environments/kubetop/local/lib/python2.7/site-packages/tubes/undefer.py", line 28, in done
pause.unpause()
File "/home/exarkun/Environments/kubetop/local/lib/python2.7/site-packages/tubes/kit.py", line 39, in unpause
self._friendPauser._actuallyResume()
File "/home/exarkun/Environments/kubetop/local/lib/python2.7/site-packages/tubes/_siphon.py", line 184, in _actuallyResume
fp.unpause()
File "/home/exarkun/Environments/kubetop/local/lib/python2.7/site-packages/tubes/kit.py", line 39, in unpause
self._friendPauser._actuallyResume()
File "/home/exarkun/Environments/kubetop/local/lib/python2.7/site-packages/tubes/_siphon.py", line 184, in _actuallyResume
fp.unpause()
exceptions.AttributeError: 'NoneType' object has no attribute 'unpause'