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bpo-32193: Convert asyncio to async/await usage (#4753)

Browse source 
* Convert asyncio/tasks.py to async/await

* Convert asyncio/queues.py to async/await

* Convert asyncio/test_utils.py to async/await

* Convert asyncio/base_subprocess.py to async/await

* Convert asyncio/subprocess.py to async/await

* Convert asyncio/streams.py to async/await

* Fix comments

* Convert asyncio/locks.py to async/await

* Convert asyncio.sleep to async def

* Add a comment

* Add missing news

* Convert stubs from AbstrctEventLoop to async functions

* Convert subprocess_shell/subprocess_exec

* Convert connect_read_pipe/connect_write_pip to async/await syntax

* Convert create_datagram_endpoint

* Convert create_unix_server/create_unix_connection

* Get rid of old style coroutines in unix_events.py

* Convert selector_events.py to async/await

* Convert wait_closed and create_connection

* Drop redundant line

* Convert base_events.py

* Code cleanup

* Drop redundant comments

* Fix indentation

* Add explicit tests for compatibility between old and new coroutines

* Convert windows event loop to use async/await

* Fix double awaiting of async function

* Convert asyncio/locks.py

* Improve docstring

* Convert tests to async/await

* Convert more tests

* Convert more tests

* Convert more tests

* Convert tests

* Improve test
This commit is contained in:
Andrew Svetlov 2017-12-09 00:23:48 +02:00 • committed by GitHub
parent ede157331b
commit 5f841b5538
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22 changed files with 647 additions and 771 deletions
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15
Lib/asyncio/base_subprocess.py
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@ -4,7 +4,6 @@ import warnings
from . import protocols
from . import transports
from .coroutines import coroutine
from .log import logger
@ -154,26 +153,25 @@ class BaseSubprocessTransport(transports.SubprocessTransport):
self._check_proc()
self._proc.kill()
@coroutine
def _connect_pipes(self, waiter):
async def _connect_pipes(self, waiter):
try:
proc = self._proc
loop = self._loop
if proc.stdin is not None:
_, pipe = yield from loop.connect_write_pipe(
_, pipe = await loop.connect_write_pipe(
lambda: WriteSubprocessPipeProto(self, 0),
proc.stdin)
self._pipes[0] = pipe
if proc.stdout is not None:
_, pipe = yield from loop.connect_read_pipe(
_, pipe = await loop.connect_read_pipe(
lambda: ReadSubprocessPipeProto(self, 1),
proc.stdout)
self._pipes[1] = pipe
if proc.stderr is not None:
_, pipe = yield from loop.connect_read_pipe(
_, pipe = await loop.connect_read_pipe(
lambda: ReadSubprocessPipeProto(self, 2),
proc.stderr)
self._pipes[2] = pipe
@ -224,8 +222,7 @@ class BaseSubprocessTransport(transports.SubprocessTransport):
waiter.set_result(returncode)
self._exit_waiters = None
@coroutine
def _wait(self):
async def _wait(self):
"""Wait until the process exit and return the process return code.
This method is a coroutine."""
@ -234,7 +231,7 @@ class BaseSubprocessTransport(transports.SubprocessTransport):
waiter = self._loop.create_future()
self._exit_waiters.append(waiter)
return (yield from waiter)
return await waiter
def _try_finish(self):
assert not self._finished