[Python-checkins] cpython (merge 3.5 -> default): Merge 3.5
yury.selivanov
python-checkins at python.org
Mon Nov 16 15:13:00 EST 2015
https://hg.python.org/cpython/rev/06820c2bd0b6
changeset: 99179:06820c2bd0b6
parent: 99176:152306d1d2b5
parent: 99178:4f8c871616e8
user: Yury Selivanov <yselivanov at sprymix.com>
date: Mon Nov 16 15:12:54 2015 -0500
summary:
Merge 3.5
files:
Lib/asyncio/tasks.py | 13 +++++++++++--
1 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/Lib/asyncio/tasks.py b/Lib/asyncio/tasks.py
--- a/Lib/asyncio/tasks.py
+++ b/Lib/asyncio/tasks.py
@@ -93,6 +93,7 @@
futures.Future.__del__(self)
def _repr_info(self):
+ # Private method, do not use it.
info = super()._repr_info()
if self._must_cancel:
@@ -221,6 +222,7 @@
return True
def _step(self, value=None, exc=None):
+ # Private method, do not use it.
assert not self.done(), \
'_step(): already done: {!r}, {!r}, {!r}'.format(self, value, exc)
if self._must_cancel:
@@ -284,13 +286,20 @@
self = None # Needed to break cycles when an exception occurs.
def _wakeup(self, future):
+ # Private method, do not use it.
try:
- value = future.result()
+ future.result()
except Exception as exc:
# This may also be a cancellation.
self._step(None, exc)
else:
- self._step(value, None)
+ # Don't pass the value of `future.result()` explicitly,
+ # as `Future.__iter__` and `Future.__await__` don't need it.
+ # If we call `_step(value, None)` instead of `_step()`,
+ # Python eval loop would use `.send(value)` method call,
+ # instead of `__next__()`, which is slower for futures
+ # that return non-generator iterators from their `__iter__`.
+ self._step()
self = None # Needed to break cycles when an exception occurs.
--
Repository URL: https://hg.python.org/cpython
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