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Add 'loop.get_exception_handler()' method. #345

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gvanrossum merged 1 commit into from
May 16, 2016
Merged

Add 'loop.get_exception_handler()' method. #345

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5 changes: 5 additions & 0 deletions asyncio/base_events.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1078,6 +1078,11 @@ def subprocess_exec(self, protocol_factory, program, *args,
logger.info('%s: %r' % (debug_log, transport))
return transport, protocol

def get_exception_handler(self):
"""Return an exception handler, or None if the default one is in use.
"""
return self._exception_handler

def set_exception_handler(self, handler):
"""Set handler as the new event loop exception handler.

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3 changes: 3 additions & 0 deletions asyncio/events.py
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Expand Up @@ -484,6 +484,9 @@ def get_task_factory(self):

# Error handlers.

def get_exception_handler(self):
raise NotImplementedError

def set_exception_handler(self, handler):
raise NotImplementedError

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2 changes: 2 additions & 0 deletions tests/test_base_events.py
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Expand Up @@ -658,8 +658,10 @@ def run_loop():
self.loop.set_debug(True)
self.loop._process_events = mock.Mock()

self.assertIsNone(self.loop.get_exception_handler())
mock_handler = mock.Mock()
self.loop.set_exception_handler(mock_handler)
self.assertIs(self.loop.get_exception_handler(), mock_handler)
handle = run_loop()
mock_handler.assert_called_with(self.loop, {
'exception': MOCK_ANY,
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