On 02/12/2014 02:02 PM, yury.selivanov wrote:
http://hg.python.org/cpython/rev/920304e1f36b changeset: 89175:920304e1f36b user: Yury Selivanov <yselivanov@sprymix.com> date: Wed Feb 12 17:01:52 2014 -0500 summary: asyncio.events: Use __slots__ in Handle and TimerHandle
files: Lib/asyncio/events.py | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/Lib/asyncio/events.py b/Lib/asyncio/events.py --- a/Lib/asyncio/events.py +++ b/Lib/asyncio/events.py @@ -19,6 +19,8 @@ class Handle: """Object returned by callback registration methods."""
+ __slots__ = ['_callback', '_args', '_cancelled'] + def __init__(self, callback, args): assert not isinstance(callback, Handle), 'A Handle is not a callback' self._callback = callback @@ -46,6 +48,8 @@ class TimerHandle(Handle): """Object returned by timed callback registration methods."""
+ __slots__ = ['_when'] + def __init__(self, when, callback, args): assert when is not None super().__init__(callback, args)
Apologies up front if these are stupid questions, but: Why __slots__? Are we going to have so many of these things that memory is an issue? The asserts in the code -- those are not for checking user input, correct? -- ~Ethan~