I have an asynchronous function that makes http requests and receives json: async def query_async(name): async with aiohttp.ClientSession() as session: async with session.get(‘https://example.com/’ + name) as resp: response = await resp.json() return response I want to call this function in synchronous code, like this: def prepare_result(): name = ‘some_url’ response = asyncio.run(query_async(name)) … Questions: will ..
Category : python-asyncio
is it valid to write this: ? event_loop = asyncio.get_event_loop() tornado.ioloop = event_loop event_loop.run_forever() If I leave out line 2 it works, too. I guess that is, because tornado takes the default io-loop if nothing else is specified. Source: Python..
In the python 3 script I need to enter a few commands under root priveleges via asyncssh. Something like this code sample: async with asyncssh.connect(host=IP, port=PORT, username=ORDINARY_USER, password=PASSWORD, known_hosts=None) as conn: result_su = await conn.run(‘echo "verysecretpass" | su’, check=False) result_1 = await conn.run("root_command1", check=False) print(result_1.stdout) result_2 = await conn.run("root_command2", check=False) print(result_2.stdout) This sample is not ..
I have this code example: import asyncio import aiosqlite async def write_row(db): index = 0 while True: index += 1 await db.execute(f’insert into files(name) values (?)’, (‘file’ + str(index),)) # here it stops if index%10 == 0: await db.commit() await asyncio.sleep(0.5) async def main(): db = await aiosqlite.connect(‘test.sqlite3’) print(db) await db.execute(‘create table if not exists ..
I need to handle list of 2500 ip-addresses from csv file. So I need to create_task from coroutine 2500 times. Inside every coroutine firstly I need to fast-check access of IP:PORT via python module "socket" and it is a synchronous function want to be in loop.run_in_executor(). Secondly if IP:PORT is opened I need to connect ..
asyncio.sleep()‘s blocking cousin, time.sleep(), cannot guarantee that it will sleep for the requested amount of time. The actual suspension time may be less than that requested because any caught signal will terminate the sleep() following execution of that signal’s catching routine. asyncio.sleep()‘s documentation does not mention a similar limitation. Is asyncio.sleep() able to make stronger ..
I have a python process consuming values from websockets. For each update I have a potentially time consuming operation to run. When the operation completes I would like run again but only on the latest value received if new values have been received in the mean time. Pseudocode: ev = asyncio.Event() def consume_ws(uri,ev): async with ..
I am using aiohttp to create a python web server app but I do not think I can use web.run_app() to start the web server because I need to run other tasks with asyncio.create_task(). So far I’ve tried the following: async def periodic(): """do some period tasks""" while True: await asyncio.sleep(10) print(‘hello from periodic’) async ..
I have a class that looks like this: class DatabaseTest: def __init__(self): self.headers = { "host": os.environ["HOST"], "username": os.environ["USERNAME"], "password": os.environ["PASSWORD"] } self.db = None self.cursor = None asyncio.create_task(self._connect()) async def _connect(self): self.db = await aiomysql.connect(self.headers[‘host’], self.headers[‘username’], self.headers[‘password’]) self.cursor = await self.db.cursor() await self.cursor.execute(‘use bot’) async def _insertData(self, guildid): sql = f’insert into data(guild) values ..
I’m trying to use Jupyter in order to run my MiniZinc model for the bacher’s degree. I’ve installed all the packages, but when I run the model it’s run an error. I tried with the examples on MiniZinc Python pdf, but it runs the same error. The code is: from minizinc import Instance, Model, Solver ..
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