I have a FastAPI app that uses package A as a dependency. On every request to the FastAPI app, package A stores some request string in a ContextVar in ...
I have a FastAPI app that uses package A as a dependency. On every request to the FastAPI app, package A stores some request string in a ContextVar in ...
I am using a library that requires async context(aioboto3). My issue is that I can't call methods from outside the async with block on my custom S3Str ...
Context variables are convenient when we need to pass a variable along the chain of calls so that they share the same context, in the case when this c ...
So here's the basic code (sorry it's long) import argparse import asyncio from contextvars import ContextVar import sys # This thing is the offender ...
As for now, I've found a lot of examples on how contextvars module behaves with asyncio, but none on how one behaves with threads (asyncio.get_event_l ...
I need to make dictionary available as context var. I was trying to use @property setter, but don't understand how to correctly set key/value in this ...
I have python decorator and I need pass contextVariable inside my decorator or as argument request_id in function Step 1: Declare contextVariables an ...
I am trying to work with a simple async example in Python, largely following this excellent answer here. My goal is to set up a context variable and ...
Contextvar 'value' doest change as it goes through 'while' cycle . ''' The output is '---' . I want to set a new value to this context var , but i ...
In documentation I didn't find anything about contextvars update. I need to have following atomically: Does python provide something like synchron ...
I have a program (an ASGI server) that is structured roughly like this: import asyncio import contextvars ctxvar = contextvars.ContextVar("ctx") a ...
I want to call some function in a separate contextvars.Context, with some variables in this context set by the caller: so that the callback and any ...
If I have a structure in an async webserver like import contextvars ... my_context_var = contextvars.ContextVar("var") @app.route("/foo") # decorat ...
Setting a dictionary as ContextVar default: var: ContextVar[dict] = ContextVar('var', default={}) ...kinda works, as the dictionary will be availab ...
In Python async function I'am creating ContextVar, task and attaching callback to it: In callback I first start debugger: And in debugger: Co ...
Is this a memory leak in Python? Is a contextvar a stack that keeps on growing the more you push to it? What if I never call contextvar.reset(toke ...
Is there a difference between ContextVar and Global Var within Google Cloud Functions? I noticed that as Google tries to re-use GCF instances some gl ...
In the Python docs about Context Vars a Context::run method is described to enable executing a callable inside a context so changes that the callable ...
Regarding the following SO answer . I've made some changes in order to understand the difference between do use Contextvars and don't. I expect at so ...
I'm trying to manage transactions in my DB framework (I use MongoDB with umongo over pymongo). To use transaction, one must pass a session kwarg alon ...