opcua-asyncio | OPC UA library for python >= 37 | Networking library

by FreeOpcUa Python Version: v1.0.2 License: LGPL-3.0

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | opcua-asyncio Summary

opcua-asyncio is a Python library typically used in Networking applications. opcua-asyncio has no bugs, it has no vulnerabilities, it has build file available, it has a Weak Copyleft License and it has low support. You can download it from GitHub.

OPC UA / IEC 62541 Client and Server for Python >= 3.7 and pypy3 .

Support

Quality

Security

License

Reuse

Support

opcua-asyncio has a low active ecosystem.

It has 748 star(s) with 294 fork(s). There are 45 watchers for this library.

It had no major release in the last 12 months.

There are 77 open issues and 373 have been closed. On average issues are closed in 189 days. There are 17 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of opcua-asyncio is v1.0.2

Quality

opcua-asyncio has 0 bugs and 0 code smells.

Security

opcua-asyncio has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

opcua-asyncio code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

opcua-asyncio is licensed under the LGPL-3.0 License. This license is Weak Copyleft.

Weak Copyleft licenses have some restrictions, but you can use them in commercial projects.

Reuse

opcua-asyncio releases are available to install and integrate.

Build file is available. You can build the component from source.

Installation instructions, examples and code snippets are available.

opcua-asyncio saves you 222926 person hours of effort in developing the same functionality from scratch.

It has 220913 lines of code, 2714 functions and 168 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed opcua-asyncio and discovered the below as its top functions. This is intended to give you an instant insight into opcua-asyncio implemented functionality, and help decide if they suit your requirements.

Create standard address space space .
Process a received message .
Run the command line interface .
Implement call method .
Create a new node .
Add a new node .
Handles the write operation .
Generate code for structs .
Convert val to a Variant object .
Create a data type node .

Get all kandi verified functions for this library.

opcua-asyncio Key Features

No Key Features are available at this moment for opcua-asyncio.

opcua-asyncio Examples and Code Snippets

No Code Snippets are available at this moment for opcua-asyncio.

Community Discussions

Trending Discussions on opcua-asyncio

read multiple values from OPC UA with opcua-asyncio

Asyncio queues in python and asyncua

Enable TCP keepalive on port open by another program

QUESTION

read multiple values from OPC UA with opcua-asyncio

Asked 2022-Jan-06 at 12:19

I'm looking for a way to read the values from multiple nodes at once instead of using a loop.

I created a list with the node objects from a CSV file.

...

ANSWER

Answered 2022-Jan-06 at 12:19

You can use read_values from client to read all values in one network request.

Example:

Source https://stackoverflow.com/questions/70579950

QUESTION

Asyncio queues in python and asyncua

Asked 2021-Jul-31 at 04:36

I'm working with asyncio and asyncua libraries in python 3.8.7 and I want to use asyncio.Queue to pass the data from the async function into the main thread.

However, the issue I encountered is that my queue does not get any messages after the first await.

Here's my example:

...

ANSWER

Answered 2021-Jul-31 at 04:36

This is a bit of a guess on my part, but I think you have a race condition. Here is the while loop in the main thread:

Source https://stackoverflow.com/questions/68597756

QUESTION

Enable TCP keepalive on port open by another program

Asked 2021-Jan-12 at 23:07

On a Debian machine I'm using an OPCUA server https://github.com/FreeOpcUa/opcua-asyncio. The server does not give the possibility to enable TCP keepalive on the port opened by the server.

Basically, I want to know if it's possible to start the server then in another script, enable the tcp keepalive on that port.

I also found some other information from Redhat https://access.redhat.com/solutions/19029, and https://access.redhat.com/solutions/25773 (requires you to sign up to see the articles). But again I'm still lost as to what to do exactly.

I'll keep reading up on this, but so far I've spent about 10 hours trying to figure out whether it's even possible. So I thought I should ask for some help.

Any advice is welcome, thanks!

...

ANSWER

Answered 2021-Jan-12 at 23:07

For operations of socket of another process socket must be shared from it https://docs.python.org/3/library/socket.html#socket.socket.share or duplicated.

Its easier to patch your server for keepalive.

Source https://stackoverflow.com/questions/65692731

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

Vulnerabilities

No vulnerabilities reported

Install opcua-asyncio

You can download it from GitHub.
You can use opcua-asyncio 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.

Support

The API remains mostly unchanged in regards to python-opcua. Main difference is that many methods have been refactored to return coroutines. Please have a look at the examples and/or the code. The original documentation (for python-opcua) is available here ReadTheDocs. A simple GUI client is available: https://github.com/FreeOpcUa/opcua-client-gui. Browse the examples: https://github.com/FreeOpcUa/opcua-asyncio/tree/master/examples. A good starting point are the minimal examples. Minimal client example: https://github.com/FreeOpcUa/opcua-asyncio/blob/master/examples/client-minimal.py Minimal server example: https://github.com/FreeOpcUa/opcua-asyncio/blob/master/examples/server-minimal.py. A set of command line tools also available: https://github.com/FreeOpcUa/opcua-asyncio/tree/master/tools. How to generate certificate: https://github.com/FreeOpcUa/opcua-asyncio/tree/master/examples/generate_certificate.sh.

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