uvloop | Ultra fast asyncio event loop | Reactive Programming library

 by   MagicStack Python Version: 0.19.0 License: Non-SPDX

kandi X-RAY | uvloop Summary

kandi X-RAY | uvloop Summary

uvloop is a Python library typically used in Programming Style, Reactive Programming applications. uvloop has no bugs, it has no vulnerabilities, it has build file available and it has high support. However uvloop has a Non-SPDX License. You can install using 'pip install uvloop' or download it from GitHub, PyPI.

Ultra fast asyncio event loop.
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            kandi-support Support

              uvloop has a highly active ecosystem.
              It has 7807 star(s) with 460 fork(s). There are 229 watchers for this library.
              There were 2 major release(s) in the last 6 months.
              There are 41 open issues and 209 have been closed. On average issues are closed in 134 days. There are 4 open pull requests and 0 closed requests.
              It has a positive sentiment in the developer community.
              The latest version of uvloop is 0.19.0

            kandi-Quality Quality

              uvloop has 0 bugs and 0 code smells.

            kandi-Security Security

              uvloop has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              uvloop code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              uvloop has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              uvloop releases are available to install and integrate.
              Deployable package is available in PyPI.
              Build file is available. You can build the component from source.
              uvloop saves you 3256 person hours of effort in developing the same functionality from scratch.
              It has 7843 lines of code, 864 functions and 29 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed uvloop and discovered the below as its top functions. This is intended to give you an instant insight into uvloop implemented functionality, and help decide if they suit your requirements.
            • Runs libv
            • Run autogen
            • Return libv build environment
            • Echo the given server
            • Emit a client socket
            • Echo client streams
            • Print debug info
            • Create a new event loop
            Get all kandi verified functions for this library.

            uvloop Key Features

            No Key Features are available at this moment for uvloop.

            uvloop Examples and Code Snippets

            Japronto!-Hello world
            Cdot img1Lines of Code : 10dot img1License : Permissive (MIT)
            copy iconCopy
            from japronto import Application
            
            
            def hello(request):
                return request.Response(text='Hello world!')
            
            
            app = Application()
            app.router.add_route('/', hello)
            app.run(debug=True)
              
            uvloop
            Pythondot img2Lines of Code : 9dot img2License : Permissive (MIT License)
            copy iconCopy
            import os
            import hikari
            
            if os.name != "nt":
                import uvloop
                uvloop.install()
            
            bot = hikari.BotApp(...)
            ...
              
            Selecting the Async backend
            Pythondot img3Lines of Code : 6dot img3License : Permissive (BSD-3-Clause)
            copy iconCopy
            def test_app()
                with TestClient(app, backend="trio") as client:
                   ...
            
            def test_app()
                with TestClient(app, backend_options={"use_uvloop": True}) as client:
                   ...
              
            uvloop - echoserver
            Pythondot img4Lines of Code : 174dot img4License : Non-SPDX
            copy iconCopy
            import argparse
            import asyncio
            import gc
            import os.path
            import pathlib
            import socket
            import ssl
            
            
            PRINT = 0
            
            
            async def echo_server(loop, address, unix):
                if unix:
                    sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
                else:
                      
            uvloop - echoclient
            Pythondot img5Lines of Code : 81dot img5License : Non-SPDX
            copy iconCopy
            # Copied with minimal modifications from curio
            # https://github.com/dabeaz/curio
            
            
            import argparse
            import concurrent.futures
            import socket
            import ssl
            import time
            
            
            if __name__ == '__main__':
                parser = argparse.ArgumentParser()
                parser.add_argum  
            uvloop - rlserver
            Pythondot img6Lines of Code : 76dot img6License : Non-SPDX
            copy iconCopy
            import argparse
            import asyncio
            import gc
            import os.path
            import socket as stdsock
            
            
            PRINT = 0
            
            
            async def echo_client_streams(reader, writer):
                sock = writer.get_extra_info('socket')
                try:
                    sock.setsockopt(
                        stdsock.IPPROTO_TCP  
            Why up and running web service returns 500 Internal Server Error?
            Pythondot img7Lines of Code : 12dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            [Unit] Description=Gunicorn Web Server as Unit Service Systemd After=network.target
            
            [Service]
            User=ubuntuserver
            Group=ubuntuserver
            WorkingDirectory=/home/ubuntuserver/test
            Environment="PATH=/home/ubuntuserver/test/venv/bin"
            ExecStart=/hom
            Defining Fastapi Pydantic many to Many relationships
            Pythondot img8Lines of Code : 20dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            -- schemas
            |-- __init__.py
            |-- category_schema.py
            |-- membership_schema.py
            
            from . import category_schema
            from . import membership_schema
            
            # Old way: ⬇
            # from schemas.category_schema import C
            Python fastapi jinja2 generate http links instead https, but ssl is working, how to fix?
            Pythondot img9Lines of Code : 2dot img9License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            proxy_set_header  X-Forwarded-Protocol  $scheme;
            
            How to make pydantic await on a async property (tortoise-orm's reverse ForeignKey)?
            Pythondot img10Lines of Code : 21dot img10License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            PPost = pydantic_model_creator(Post)
            # used as
            return await PPost.from_tortoise_orm(await Post.get_or_none(id=1))
            
            asyncio.create_task(init_tortoise())
            
            asyncio.get_event_loop().run_until_com

            Community Discussions

            QUESTION

            sqlalchemy tries to create my tables twice
            Asked 2022-Mar-14 at 16:57

            sqlalchemy searches my tables twice.

            I've been looking for a problem all day, but I can't find it

            apps/books/models

            ...

            ANSWER

            Answered 2022-Mar-14 at 16:57

            If you encounter this problem, you need to thoroughly change every import in your program, specifying the same path from the root directory everywhere.

            another reason for the problem may be the architecture of the project.

            my first reason why my database didn't create tables is because it was on the same level as the tables. in my case, it was in apps/utils/main when the tables were at the apps/books/models level, he added it to Base.metadata.tables, but when he moved to apps/utils/main the Base.metadata.tables list was empty. when I pulled it to the current level, the problem disappeared

            resume:

            string Base.metadata.create_all(bind=engine) must be a level higher than module models (or another name your models)

            and update your imports

            Source https://stackoverflow.com/questions/71464268

            QUESTION

            How to run Faust from Docker - ERROR: Failed building wheel for python-rocksdb
            Asked 2021-Dec-27 at 23:37

            I'm trying to run Python Faust from Docker.

            Based on this documentation: https://faust.readthedocs.io/en/latest/userguide/installation.html

            I created a simple Docker file:

            ...

            ANSWER

            Answered 2021-Dec-27 at 23:37

            Read the error message, where it is clearly stated you are missing a header file:

            fatal error: rocksdb/slice.h: No such file or directory 705 | #include "rocksdb/slice.h" | ^~~~~~~~~~~~~~~~~ compilation terminated. error: command '/usr/bin/gcc' failed with exit code 1

            Accordingly, you'll need to build and install RocksDB. This is separate from the installation of faust[rocksdb] with pip. That simply installs python-rocksdb, the Python interface to the underlying libraries.

            There is even a (third-party) RocksDB docker image based on Python 3.7 Slim.

            You could use that directly or take some tricks from the Dockerfile for that image.

            Source https://stackoverflow.com/questions/70500665

            QUESTION

            libuv vs asyncio (python)
            Asked 2021-Dec-20 at 13:26

            I have been trying to find the difference in implementation of the uvloop and inbuilt asyncio that comes up with python. Apart from the fact that libuv the base of uvloop is written in c++, there is no other factor that is mentioned in the web. I would like to know about the other factors that affect the asyncio [erfomance between them.

            Also on a side-note this blog consists of performance difference stream and normal async io, isn't stream generated from the asyncio and thus dependent on each other?

            ...

            ANSWER

            Answered 2021-Dec-20 at 13:26

            As you said, uvloop is written in Cython (equivalent to c) on top of libuv.

            Writing code in Cython is almost guaranteed to give you a noticeable speed boost which is exactly what's happening here. No need for any other difference. It's much like numpy doing operations faster than writing normally in Python.

            For your other question: The difference between asyncio and asyncio-streams is that streams are built on top of the basic asyncio.

            Asyncio uses transports and protocols, the first responsible for writing to the socket, and the second for handling data received by the socket.

            Streams are simple constructs built on top of both, and have an easier to use interface that mimics regular files or sockets.

            Source https://stackoverflow.com/questions/70320554

            QUESTION

            Not able to run linux command in background from dockerfile?
            Asked 2021-Dec-15 at 09:25

            Here's my docker file,

            ...

            ANSWER

            Answered 2021-Dec-15 at 09:25

            Why is that?

            Because your docker container is configured to run /usr/local/bin/gunicorn, as defined by the ENTRYPOINT instruction.

            how can I run that above command in background and go to entrypoint in docker file.

            The standard way to do this is to write a wrapper script which executes all programs you need. So for this example, something like run.sh:

            Source https://stackoverflow.com/questions/70355410

            QUESTION

            Defining Fastapi Pydantic many to Many relationships
            Asked 2021-Sep-29 at 12:07

            What's a proper way to define many-to-many relationships in a pydantic model without getting circular import error. I have two files supplier_schema.py and category_schema.py.

            supplier_schema.py

            ...

            ANSWER

            Answered 2021-Sep-04 at 15:17

            This import error is owing to the following process:

            1. supplier_schema.py is defined
            2. supplier_schema module imports Category from schemas.category_schema
            3. Since schemas.category_schema hasn't yet been defined, it is now executed.
            4. But wait! category_schema requires importing Supplier from supplier_schema.
            5. supplier_schema cannot proceed execution without importing from category_schema and vice versa.
            6. This is known as a circular import.
            How can you solve circular imports?

            I'll be addressing this specific case.
            For more general use cases, read: Circular import dependency in Python

            Option 1: Combine everything into one module.

            • This is the fastest and simplest solution.
            • Can get pretty out of hand once your ORM code increases to many models.

            Option 2: Import models in the initialization of the root module and change import language:

            • Robust solution
            • Requires more careful planning and architecting of your project
            • Requires testing (additional imports create opportunity for breakage)

            Here's how to execute this:
            Ensure your schemas module contains an init file:

            Source https://stackoverflow.com/questions/69042316

            QUESTION

            Python application giving error deployed through Docker
            Asked 2021-Sep-17 at 15:46

            I have python application which I am deploying through. Container is creating properly and it is up and running. But server is getting stop and throwing error.

            Dockerfile

            ...

            ANSWER

            Answered 2021-Sep-17 at 15:41

            Binding to '0.0.0.0' (all NICs) seemed to solve the issue after hardcoding that to the app.start function. Before used to bind to ipv6 localhost address (::1)

            Source https://stackoverflow.com/questions/69225099

            QUESTION

            Docker build fail on one of two systems
            Asked 2021-Aug-16 at 06:19

            I'm trying to build an image based on the official python:3.8-alpine and include the python uvloop package.

            When I build, it works on my machine(tm), but trying to build the same Dockerfile on our build system fails.
            Both systems are running Linux, but my local machine is moderately up-to-date, while the build-system is ancient (both kernel and Docker), more details at bottom.

            This is a small Dockerfile where I can reproduce the issue:

            ...

            ANSWER

            Answered 2021-Aug-16 at 06:19

            After further googling, it turns out that the issue here is that newer versions of Alpine Linux (3.14+) requires Docker 20.10.0 or higher.

            Downgrading Alpine to 3.13 properly builds.

            Given that Ubuntu 16.04 on the build system is EOL since April 2021, I'll aim at having it upgraded rather than pinning old version of Alpine for the build.

            Source https://stackoverflow.com/questions/68774363

            QUESTION

            Why are results different between using threads and processes?
            Asked 2021-Aug-01 at 06:05

            When I practiced python's thread and process, I found that the print result of thread and process will be different when processing some functions. I don’t really understand the reason, so I sent the code and the print result together. And how to make the results of the process part and the thread part the same?

            When using thread, the thing is all right:

            ...

            ANSWER

            Answered 2021-Aug-01 at 04:18

            In multithread you have shared memory but in multiprocessing, you dont have shared memory. So when you try change global variable in each process, you miss data. This problem have no solution in this way, you should choose right option attention to your project situations. If you need to manipulate shared data in each parallel function you should use thread. Although you can use Queue to pass data between each process in multiprocessing. https://docs.python.org/3/library/queue.html

            Source https://stackoverflow.com/questions/68607348

            QUESTION

            Cannot send email using stmp python in docker container, how to fix?
            Asked 2021-Jul-02 at 10:09

            Cannot to send email in docker container on remote serever, i can send email with the same code on my pc, and it work, but on remote server not work, even if just create script, it just stuck without error

            ...

            ANSWER

            Answered 2021-Jul-02 at 10:09

            Linode blocks outgoing mail by default. Refer to their docs here

            Always refer to the documentation of the provider of your cloud based server if you encounter SMTP issues.

            Source https://stackoverflow.com/questions/68220234

            QUESTION

            Python fastapi jinja2 generate http links instead https, but ssl is working, how to fix?
            Asked 2021-Jun-30 at 09:22

            Jinja2 generate http links , instead of https, https is working, i also set base tag, cannot understood where is problem

            Dockerfile

            ...

            ANSWER

            Answered 2021-Jun-30 at 09:22

            Need to ad this header to my conf

            Source https://stackoverflow.com/questions/68191216

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install uvloop

            You can install using 'pip install uvloop' or download it from GitHub, PyPI.
            You can use uvloop like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

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            pip install uvloop

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            gh repo clone MagicStack/uvloop

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