greenlet is a Python C-extension that adds lightweight coroutines to the language, useful for cooperative multitasking.
greenlet is a Python C-extension that adds lightweight coroutines to the language, useful for cooperative multitasking.
Questions tagged [greenlets]
150 questions
0
votes
0 answers
Error using Thread.start() with Python3.9 and Gevent worker class
We have a Flask App which extensively uses threading.Thread class to spawn threads for Async API requests.
Sample flask app that imitates our application is as below.
from flask import Flask import threading
app = Flask(__name__)
@app.route('/')…
Chethu2288
- 11
- 4
0
votes
0 answers
Error installing flask-sqlalchemy "Could not build wheels for greenlet..."
New to flask, trying to install Flask-SQLAlchemy "pip install flask Flask-SQLAlchemy". Getting error building wheel for greenlet:
error: subprocess-exited-with-error
× python setup.py bdist_wheel did not run successfully.
│ exit code: 1
I tried…
Kevin T
- 45
- 1
- 7
0
votes
0 answers
ImportError: DLL load failed while importing _greenlet: The specified module could not be found
I tried running the command "python -m auto_py_to_exe" on Visual Studio Code/Command Prompt on a Windows 10 Virtual Machine using Python 3.9.0, Python 3.10.0/3.10.11 as well as Python 3.11.
However, I always get the following:
Traceback (most recent…
User2000
- 119
- 2
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0
votes
1 answer
missing greenlet in schema response model fastapi
My schemas:
class ChannelIn(BaseModel):
name: str
avatar: Optional[str]
description: Optional[str]
class Config:
arbitrary_types_allowed = True
orm_mode = True
class ChannelResponse(ChannelIn):
id: UUID
…
user21139240
0
votes
0 answers
Prefer binary package in setup.cfg
My project (https://github.com/locustio/locust) depends on greenlet, but whenever there is a new release of that, there is a brief period when no binary version is available, and many of my users have issues with installing from source.
Is there a…
Cyberwiz
- 11,027
- 3
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0
votes
1 answer
ModuleNotFoundError: No module named 'greenlet._greenlet'
I'm trying to use the TikTokPy but there is an error occurring in Greenlet module:
$ python quickstart.py
Traceback (most recent call last):
File "C:\Users\mngoc\tiktokpy\quickstart.py", line 2, in
from tiktokpy import TikTokPy
File…
mieve
- 1
- 1
0
votes
0 answers
Extracting return value in gevent from a method which returns 2 values
Note: I am getting this error in unit testing. Haven't been able to deploy it to dev/prod. could it be anything to do with app context? how to create one in py.test?
I recently converted a code which was doing multiple io calls to multithreaded. I…
Em Ae
- 8,167
- 27
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0
votes
1 answer
Gevent infinite queue consumer?
I am trying to have a consumer on a separate thread that never dies. The consumer can get arbitrary number of tasks to execute.
I have been fiddling with asyncio and gevent but haven't managed to get anything that works. Below is a very simplified…
Pithikos
- 18,827
- 15
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- 136
0
votes
1 answer
Why Use gevent.joinall() Instead of pool.imap_unordered() to Run Greenlets?
The title says it all. It seems better and faster to use one of the methods belonging to gevent.Pool to run greenlets in parallel (sort-of) in a pool, as opposed to gevent.joinall(). What are the pros and cons of each approach?
Daniel
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0
votes
0 answers
AttributeError: 'module' object has no attribute 'poll'
Trying to use gevent.select.poll for monitoring something under /sys. The below code works fine when using native Python. When i use gevent and do
from gevent import monkey
monkey.patch_all()
from gevent import select
p =…
user9763248
- 35
- 1
- 5
0
votes
0 answers
gevent.hub.LoopExit: This operation would block forever
Trying to use select.select in Python to monitor something under /proc/. Initially, it threw
r, w, x = select.select([],[],[fd])
AttributeError: 'function' object has no attribute 'select'
Since we are using gevents, used this to get rid of…
user9763248
- 35
- 1
- 5
0
votes
1 answer
TikTokApi and threading
I need to start the download process in the background and I use something like this:
from threading import Thread
api = TikTokApi()
def foo():
url =…
Егор Авдонин
- 1
- 1
0
votes
0 answers
How to gevent.sleep in current gevent.pool
Lets say I have two gevent pool groups
gevent_pool_1 = Pool(2)
gevent_pool_2 = Pool(2)
I want to
gevent.sleep(10)
in
gevent_pool_1
which will not block the
gevent_pool_2
David Mnatsakanyan
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0
votes
1 answer
How to stop a greenlet which waits for receiving from socket in a forever loop
I'm writing a simple module in my Python app to communicate with the server. I use gevent and zeromq socket. This module will run in a thread.
Here is a demo
import threading
import gevent
import zmq.green as zmq
class…
shang12
- 423
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- 18
0
votes
1 answer
Remove stacktrace from python gevent output
I'm new to python and trying to remove/trim gevent stacktrace output when an exception is raised. I read somewhere that I can make it happen by using AsyncResult, however it seems like I can't figure out how to use this.
Here is an example I started…
Roya
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