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asyncio: Remove unused Future._tb_logger attribute (GH-4596) (#4598)

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It was only used on Python 3.3, now only Future._log_traceback is
used.
(cherry picked from commit c16bacec3c)
This commit is contained in:
Miss Islington (bot) 2017-11-28 01:32:28 -08:00 • committed by Victor Stinner
parent d5c71b0c98
commit f54e405200
1 changed files with 1 additions and 8 deletions
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9
Lib/asyncio/futures.py
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@ -143,8 +143,7 @@ class Future:
# `yield Future()` (incorrect).
_asyncio_future_blocking = False
_log_traceback = False # Used for Python 3.4 and later
_tb_logger = None # Used for Python 3.3 only
_log_traceback = False
def __init__(self, *, loop=None):
"""Initialize the future.
@ -240,9 +239,6 @@ class Future:
if self._state != _FINISHED:
raise InvalidStateError('Result is not ready.')
self._log_traceback = False
if self._tb_logger is not None:
self._tb_logger.clear()
self._tb_logger = None
if self._exception is not None:
raise self._exception
return self._result
@ -260,9 +256,6 @@ class Future:
if self._state != _FINISHED:
raise InvalidStateError('Exception is not set.')
self._log_traceback = False
if self._tb_logger is not None:
self._tb_logger.clear()
self._tb_logger = None
return self._exception
def add_done_callback(self, fn):