My jobs are all a series of requests that need to be made per object. Ie, its a User with several data points (potentially hundreds) that need to be added to that user with requests. I had originally written those requests to run synchronously but it was blocking and slow. I was sending each User job to Pytho…
Tag: async-await
Separating async requests and saving using aiohttp
I am currently calling an external API many times and downloading the response’s content from each call. I am using aiohttp and asyncio to speed up this process, but am having trouble figuring out how to separate the fetch functionality from the save functionality. Setup Currently, I am using the follow…
Using an asynchronous function in __del__
I’d like to define what essentially is an asynchronous __del__ that closes a resource. Here’s an example. This works, printing destructing and closing as expected. However, if the resource is defined outside an asynchronous function, __del__ is called, but closing is never performed. No warning is…
Write a CSV file asynchronously in Python
I am writing a CSV file with the following function: However, as there is no await allowed over writerows method, there are no rows being written into the CSV file. How to resolve this issue? Is there any workaround available? Thank you. Entire code can be found here. Answer In my opinion it’s better not to t…
Azure ServiceBus using async/await in Python seems not to work
I’m trying to read messages from Azure ServiceBus Topics using async/await and then forward the content to another application via HTTP. My code is simple: I want to look for messages (forever) from various topics and when a message arrives send the POST. I import the aio package from azure which should…
AttributeError: module ‘asyncio’ has no attribute ‘create_task’
I’m trying to asyncio.create_task() but I’m dealing with this error: Here’s an example: Out: So I tried with the following code snippet (.ensure_future()) instead, without any problem: Out: What’s wrong? [NOTE]: Python 3.6 Ubuntu 16.04 [UPDATE]: With borrowing from @user4815162342 Answ…
How to use async await in python falcon?
I am looking for example of using async await features of python 3. I am using falcon framework for building rest api. Can’t figure out how to use async await with it. Please help me, by providing some examples, maybe with other frameworks. Thank you! Answer Update: as of Falcon 3.0, the framework suppo…
How to use await in a python lambda
I’m trying to do something like this: But I get this error: Which makes sense because the lambda is not async. I tried to use async lambda x: … but that throws a SyntaxError: invalid syntax. Pep 492 states: Syntax for asynchronous lambda functions could be provided, but this construct is outside o…