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Avoid explicitly passing the loop to asyncio

Browse Source 
This behaviour is deprecated and will be removed in future versions
of Python. Technically, it could be considered a bug (invalid usage
causing different behaviour from the expected one), and in practice
it should not break much code (because .get_event_loop() would likely
be the same event loop anyway).
This commit is contained in:
Lonami Exo 2020-07-25 18:39:35 +02:00
parent de17a19168
commit 1c3e7dda01
15 changed files with 65 additions and 73 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
readthedocs/concepts/asyncio.rst
View File

@ -219,19 +219,21 @@ Can I use threads?
==================
Yes, you can, but you must understand that the loops themselves are
not thread safe. and you must be sure to know what is happening. You
may want to create a loop in a new thread and make sure to pass it to
the client:
not thread safe. and you must be sure to know what is happening. The
easiest and cleanest option is to use `asyncio.run` to create and manage
the new event loop for you:
.. code-block:: python
import asyncio
import threading
def go():
loop = asyncio.new_event_loop()
async def actual_work():
client = TelegramClient(..., loop=loop)
...
... # can use `await` here
def go():
asyncio.run(actual_work())
threading.Thread(target=go).start()

2
telethon/client/dialogs.py
View File

@ -378,7 +378,7 @@ class DialogMethods:
entities = [await self.get_input_entity(entity)]
else:
entities = await asyncio.gather(
*(self.get_input_entity(x) for x in entity), loop=self.loop)
*(self.get_input_entity(x) for x in entity))
if folder is None:
raise ValueError('You must specify a folder')

20
telethon/client/telegrambaseclient.py
View File

@ -180,7 +180,8 @@ class TelegramBaseClient(abc.ABC):
Defaults to `lang_code`.
loop (`asyncio.AbstractEventLoop`, optional):
Asyncio event loop to use. Defaults to `asyncio.get_event_loop()`
Asyncio event loop to use. Defaults to `asyncio.get_event_loop()`.
This argument is ignored.
base_logger (`str` | `logging.Logger`, optional):
Base logger name or instance to use.
@ -227,7 +228,7 @@ class TelegramBaseClient(abc.ABC):
"Refer to telethon.rtfd.io for more information.")
self._use_ipv6 = use_ipv6
self._loop = loop or asyncio.get_event_loop()
self._loop = asyncio.get_event_loop()
if isinstance(base_logger, str):
base_logger = logging.getLogger(base_logger)
@ -334,7 +335,7 @@ class TelegramBaseClient(abc.ABC):
)
self._sender = MTProtoSender(
self.session.auth_key, self._loop,
self.session.auth_key,
loggers=self._log,
retries=self._connection_retries,
delay=self._retry_delay,
@ -350,15 +351,15 @@ class TelegramBaseClient(abc.ABC):
# Cache ``{dc_id: (_ExportState, MTProtoSender)}`` for all borrowed senders
self._borrowed_senders = {}
self._borrow_sender_lock = asyncio.Lock(loop=self._loop)
self._borrow_sender_lock = asyncio.Lock()
self._updates_handle = None
self._last_request = time.time()
self._channel_pts = {}
if sequential_updates:
self._updates_queue = asyncio.Queue(loop=self._loop)
self._dispatching_updates_queue = asyncio.Event(loop=self._loop)
self._updates_queue = asyncio.Queue()
self._dispatching_updates_queue = asyncio.Event()
else:
# Use a set of pending instead of a queue so we can properly
# terminate all pending updates on disconnect.
@ -481,7 +482,6 @@ class TelegramBaseClient(abc.ABC):
self.session.server_address,
self.session.port,
self.session.dc_id,
loop=self._loop,
loggers=self._log,
proxy=self._proxy
)):
@ -556,7 +556,7 @@ class TelegramBaseClient(abc.ABC):
for task in self._updates_queue:
task.cancel()
await asyncio.wait(self._updates_queue, loop=self._loop)
await asyncio.wait(self._updates_queue)
self._updates_queue.clear()
pts, date = self._state_cache[None]
@ -639,12 +639,11 @@ class TelegramBaseClient(abc.ABC):
#
# If one were to do that, Telegram would reset the connection
# with no further clues.
sender = MTProtoSender(None, self._loop, loggers=self._log)
sender = MTProtoSender(None, loggers=self._log)
await sender.connect(self._connection(
dc.ip_address,
dc.port,
dc.id,
loop=self._loop,
loggers=self._log,
proxy=self._proxy
))
@ -680,7 +679,6 @@ class TelegramBaseClient(abc.ABC):
dc.ip_address,
dc.port,
dc.id,
loop=self._loop,
loggers=self._log,
proxy=self._proxy
))

2
telethon/client/updates.py
View File

@ -326,7 +326,7 @@ class UpdateMethods:
while self.is_connected():
try:
await asyncio.wait_for(
self.disconnected, timeout=60, loop=self._loop
self.disconnected, timeout=60
)
continue # We actually just want to act upon timeout
except asyncio.TimeoutError:

4
telethon/client/users.py
View File

@ -44,7 +44,7 @@ class UserMethods:
self._flood_waited_requests.pop(r.CONSTRUCTOR_ID, None)
elif diff <= self.flood_sleep_threshold:
self._log[__name__].info(*_fmt_flood(diff, r, early=True))
await asyncio.sleep(diff, loop=self._loop)
await asyncio.sleep(diff)
self._flood_waited_requests.pop(r.CONSTRUCTOR_ID, None)
else:
raise errors.FloodWaitError(request=r, capture=diff)
@ -99,7 +99,7 @@ class UserMethods:
if e.seconds <= self.flood_sleep_threshold:
self._log[__name__].info(*_fmt_flood(e.seconds, request))
await asyncio.sleep(e.seconds, loop=self._loop)
await asyncio.sleep(e.seconds)
else:
raise
except (errors.PhoneMigrateError, errors.NetworkMigrateError,

2
telethon/events/common.py
View File

@ -92,7 +92,7 @@ class EventBuilder(abc.ABC):
return
if not self._resolve_lock:
self._resolve_lock = asyncio.Lock(loop=client.loop)
self._resolve_lock = asyncio.Lock()
async with self._resolve_lock:
if not self.resolved:

11
telethon/events/inlinequery.py
View File

@ -206,10 +206,9 @@ class InlineQuery(EventBuilder):
return
if results:
futures = [self._as_future(x, self._client.loop)
for x in results]
futures = [self._as_future(x) for x in results]
await asyncio.wait(futures, loop=self._client.loop)
await asyncio.wait(futures)
# All futures will be in the `done` *set* that `wait` returns.
#
@ -236,10 +235,10 @@ class InlineQuery(EventBuilder):
)
@staticmethod
def _as_future(obj, loop):
def _as_future(obj):
if inspect.isawaitable(obj):
return asyncio.ensure_future(obj, loop=loop)
return asyncio.ensure_future(obj)
f = loop.create_future()
f = asyncio.get_event_loop().create_future()
f.set_result(obj)
return f

5
telethon/extensions/messagepacker.py
View File

@ -22,11 +22,10 @@ class MessagePacker:
point where outgoing requests are put, and where ready-messages are get.
"""
def __init__(self, state, loop, loggers):
def __init__(self, state, loggers):
self._state = state
self._loop = loop
self._deque = collections.deque()
self._ready = asyncio.Event(loop=loop)
self._ready = asyncio.Event()
self._log = loggers[__name__]
def append(self, state):

21
telethon/network/connection/connection.py
View File

@ -28,11 +28,10 @@ class Connection(abc.ABC):
# should be one of `PacketCodec` implementations
packet_codec = None
def __init__(self, ip, port, dc_id, *, loop, loggers, proxy=None):
def __init__(self, ip, port, dc_id, *, loggers, proxy=None):
self._ip = ip
self._port = port
self._dc_id = dc_id # only for MTProxy, it's an abstraction leak
self._loop = loop
self._log = loggers[__name__]
self._proxy = proxy
self._reader = None
@ -48,9 +47,8 @@ class Connection(abc.ABC):
async def _connect(self, timeout=None, ssl=None):
if not self._proxy:
self._reader, self._writer = await asyncio.wait_for(
asyncio.open_connection(
self._ip, self._port, loop=self._loop, ssl=ssl),
loop=self._loop, timeout=timeout
asyncio.open_connection(self._ip, self._port, ssl=ssl),
timeout=timeout
)
else:
import socks
@ -67,9 +65,8 @@ class Connection(abc.ABC):
s.settimeout(timeout)
await asyncio.wait_for(
self._loop.sock_connect(s, address),
timeout=timeout,
loop=self._loop
asyncio.get_event_loop().sock_connect(s, address),
timeout=timeout
)
if ssl:
if ssl_mod is None:
@ -87,8 +84,7 @@ class Connection(abc.ABC):
s.setblocking(False)
self._reader, self._writer = \
await asyncio.open_connection(sock=s, loop=self._loop)
self._reader, self._writer = await asyncio.open_connection(sock=s)
self._codec = self.packet_codec(self)
self._init_conn()
@ -101,8 +97,9 @@ class Connection(abc.ABC):
await self._connect(timeout=timeout, ssl=ssl)
self._connected = True
self._send_task = self._loop.create_task(self._send_loop())
self._recv_task = self._loop.create_task(self._recv_loop())
loop = asyncio.get_event_loop()
self._send_task = loop.create_task(self._send_loop())
self._recv_task = loop.create_task(self._recv_loop())
async def disconnect(self):
"""

4
telethon/network/connection/tcpmtproxy.py
View File

@ -95,12 +95,12 @@ class TcpMTProxy(ObfuscatedConnection):
obfuscated_io = MTProxyIO
# noinspection PyUnusedLocal
def __init__(self, ip, port, dc_id, *, loop, loggers, proxy=None):
def __init__(self, ip, port, dc_id, *, loggers, proxy=None):
# connect to proxy's host and port instead of telegram's ones
proxy_host, proxy_port = self.address_info(proxy)
self._secret = bytes.fromhex(proxy[2])
super().__init__(
proxy_host, proxy_port, dc_id, loop=loop, loggers=loggers)
proxy_host, proxy_port, dc_id, loggers=loggers)
async def _connect(self, timeout=None, ssl=None):
await super()._connect(timeout=timeout, ssl=ssl)

37
telethon/network/mtprotosender.py
View File

@ -40,12 +40,11 @@ class MTProtoSender:
A new authorization key will be generated on connection if no other
key exists yet.
"""
def __init__(self, auth_key, loop, *, loggers,
def __init__(self, auth_key, *, loggers,
retries=5, delay=1, auto_reconnect=True, connect_timeout=None,
auth_key_callback=None,
update_callback=None, auto_reconnect_callback=None):
self._connection = None
self._loop = loop
self._loggers = loggers
self._log = loggers[__name__]
self._retries = retries
@ -55,7 +54,7 @@ class MTProtoSender:
self._auth_key_callback = auth_key_callback
self._update_callback = update_callback
self._auto_reconnect_callback = auto_reconnect_callback
self._connect_lock = asyncio.Lock(loop=loop)
self._connect_lock = asyncio.Lock()
# Whether the user has explicitly connected or disconnected.
#
@ -65,7 +64,7 @@ class MTProtoSender:
# pending futures should be cancelled.
self._user_connected = False
self._reconnecting = False
self._disconnected = self._loop.create_future()
self._disconnected = asyncio.get_event_loop().create_future()
self._disconnected.set_result(None)
# We need to join the loops upon disconnection
@ -78,8 +77,7 @@ class MTProtoSender:
# Outgoing messages are put in a queue and sent in a batch.
# Note that here we're also storing their ``_RequestState``.
self._send_queue = MessagePacker(self._state, self._loop,
loggers=self._loggers)
self._send_queue = MessagePacker(self._state, loggers=self._loggers)
# Sent states are remembered until a response is received.
self._pending_state = {}
@ -171,7 +169,7 @@ class MTProtoSender:
if not utils.is_list_like(request):
try:
state = RequestState(request, self._loop)
state = RequestState(request)
except struct.error as e:
# "struct.error: required argument is not an integer" is not
# very helpful; log the request to find out what wasn't int.
@ -186,7 +184,7 @@ class MTProtoSender:
state = None
for req in request:
try:
state = RequestState(req, self._loop, after=ordered and state)
state = RequestState(req, after=ordered and state)
except struct.error as e:
self._log.error('Request caused struct.error: %s: %s', e, request)
raise
@ -206,7 +204,7 @@ class MTProtoSender:
Note that it may resolve in either a ``ConnectionError``
or any other unexpected error that could not be handled.
"""
return asyncio.shield(self._disconnected, loop=self._loop)
return asyncio.shield(self._disconnected)
# Private methods
@ -241,7 +239,7 @@ class MTProtoSender:
# reconnect cleanly after.
await self._connection.disconnect()
connected = False
await asyncio.sleep(self._delay, loop=self._loop)
await asyncio.sleep(self._delay)
continue # next iteration we will try to reconnect
break # all steps done, break retry loop
@ -253,17 +251,18 @@ class MTProtoSender:
await self._disconnect(error=e)
raise e
loop = asyncio.get_event_loop()
self._log.debug('Starting send loop')
self._send_loop_handle = self._loop.create_task(self._send_loop())
self._send_loop_handle = loop.create_task(self._send_loop())
self._log.debug('Starting receive loop')
self._recv_loop_handle = self._loop.create_task(self._recv_loop())
self._recv_loop_handle = loop.create_task(self._recv_loop())
# _disconnected only completes after manual disconnection
# or errors after which the sender cannot continue such
# as failing to reconnect or any unexpected error.
if self._disconnected.done():
self._disconnected = self._loop.create_future()
self._disconnected = loop.create_future()
self._log.info('Connection to %s complete!', self._connection)
@ -378,7 +377,7 @@ class MTProtoSender:
self._pending_state.clear()
if self._auto_reconnect_callback:
self._loop.create_task(self._auto_reconnect_callback())
asyncio.get_event_loop().create_task(self._auto_reconnect_callback())
break
else:
@ -398,7 +397,7 @@ class MTProtoSender:
# gets stuck.
# TODO It still gets stuck? Investigate where and why.
self._reconnecting = True
self._loop.create_task(self._reconnect(error))
asyncio.get_event_loop().create_task(self._reconnect(error))
# Loops
@ -411,7 +410,7 @@ class MTProtoSender:
"""
while self._user_connected and not self._reconnecting:
if self._pending_ack:
ack = RequestState(MsgsAck(list(self._pending_ack)), self._loop)
ack = RequestState(MsgsAck(list(self._pending_ack)))
self._send_queue.append(ack)
self._last_acks.append(ack)
self._pending_ack.clear()
@ -564,7 +563,7 @@ class MTProtoSender:
if rpc_result.error:
error = rpc_message_to_error(rpc_result.error, state.request)
self._send_queue.append(
RequestState(MsgsAck([state.msg_id]), loop=self._loop))
RequestState(MsgsAck([state.msg_id])))
if not state.future.cancelled():
state.future.set_exception(error)
@ -751,8 +750,8 @@ class MTProtoSender:
enqueuing a :tl:`MsgsStateInfo` to be sent at a later point.
"""
self._send_queue.append(RequestState(MsgsStateInfo(
req_msg_id=message.msg_id, info=chr(1) * len(message.obj.msg_ids)),
loop=self._loop))
req_msg_id=message.msg_id, info=chr(1) * len(message.obj.msg_ids)
)))
async def _handle_msg_all(self, message):
"""

4
telethon/network/requeststate.py
View File

@ -10,10 +10,10 @@ class RequestState:
"""
__slots__ = ('container_id', 'msg_id', 'request', 'data', 'future', 'after')
def __init__(self, request, loop, after=None):
def __init__(self, request, after=None):
self.container_id = None
self.msg_id = None
self.request = request
self.data = bytes(request)
self.future = asyncio.Future(loop=loop)
self.future = asyncio.Future()
self.after = after

3
telethon/requestiter.py
View File

@ -65,8 +65,7 @@ class RequestIter(abc.ABC):
# asyncio will handle times <= 0 to sleep 0 seconds
if self.wait_time:
await asyncio.sleep(
self.wait_time - (time.time() - self.last_load),
loop=self.client.loop
self.wait_time - (time.time() - self.last_load)
)
self.last_load = time.time()

3
telethon/tl/custom/conversation.py
View File

@ -445,8 +445,7 @@ class Conversation(ChatGetter):
# cleared when their futures are set to a result.
return asyncio.wait_for(
future,
timeout=None if due == float('inf') else due - time.time(),
loop=self._client.loop
timeout=None if due == float('inf') else due - time.time()
)
def _cancel_all(self, exception=None):

6
telethon_examples/gui.py
View File

@ -341,8 +341,8 @@ class App(tkinter.Tk):
self.chat.configure(bg='yellow')
async def main(loop, interval=0.05):
client = TelegramClient(SESSION, API_ID, API_HASH, loop=loop)
async def main(interval=0.05):
client = TelegramClient(SESSION, API_ID, API_HASH)
try:
await client.connect()
except Exception as e:
@ -372,7 +372,7 @@ if __name__ == "__main__":
# Some boilerplate code to set up the main method
aio_loop = asyncio.get_event_loop()
try:
aio_loop.run_until_complete(main(aio_loop))
aio_loop.run_until_complete(main())
finally:
if not aio_loop.is_closed():
aio_loop.close()