I'm getting bus error when attempt to write to unix-socket from my client application, so I wanted to debug my connection and communicate through this socket by writing some basic script commands directly from command line bash/python for debugging my connection.
Seems like simple echoing operation is not supported on the socket, Perhaps there's a simple python package to communicate with the socket ?
Related
I have a long-running server application written in Python 3, which I would like to interactively debug from time to time. For that I would like to run Python commands "within" the server application process, inspect the values of global variables etc., like in a REPL or the standardd Python console.
It seems the Python standard library's code module and its InteractiveConsole class seems to be what I am looking for. I was thinking of running that in a separate thread so that the main application is not blocked while I communicate with it.
However, it seems that class provides interaction via standard input and output. That might not be exactly what I need. Is there a way to make that interactive console listen / connect to a socket and send input and output through this socket, so that I can connect to the console via a TCP connection?
Or is there another, better way to implement my requirement without this code module?
i am trying to write a simple extension in chrome which sends data to a TCP socket server in python.
Unfortunately, extensions cannot use sockets library in chrome.
is there any simple way to communicate with a TCP socket server in python?
Alternatively, is there any way to communicate with python at all?
I think Native Messaging is what you want.
You can find a example code snippet in the Example section of this page.
It uses native messaging to communicate with a Python script.
I am new to Python - and work on Slackware Linux with Python 3.4.3. I prefer simple no-dependency solutions within one single python script.
I am building a demonized server program (A) which I need to access through both a regular shell CLI and GUIs in my web browser: it serves various files, uses a corresponding database and updates a firefox tab through python's WEBBROWSER function. Currently, I access process (A) via the CLI or a threaded network socket. This all started to work in a localhost scenario with all processes running on one machine.
Now, it turns out that the WebSocket protocol would render my setup dramatically simpler and cut short on traditional flow protocols using Apache and complex frameworks as middlemen.
1st central question: How do I access daemon (A) with websockets from the CLI? I thought about firing up a non-daemon version of my server program, now called (B), and send a program call to its (A) counterpart via the WebSocket HTTP protocol. This would make process (B) a websocket CLIENT, and process (A) a websocket SERVER. Is such a communication at all possible today?
2nd question: Which is the best suited template solution for this scenario - that works with python 3.4.3 ?! I started to play with Pithikos' very sleek python-websocket-server template (see https://github.com/Pithikos/python-websocket-server) but I am unable to use it as CLIENT (initiating the network call) to call its SERVER equivalent (receiving the call while residing in a daemonized process).
Problem 'solved': I gave up on the zero-dependency zero-library idea :
pip install websockets
https://websockets.readthedocs.io
It works like a charm. The WebSocket server sits in the daemon process and receives and processes WebSocket client calls that come from the CLI processes and from the HTML GUIs.
Hello great people of the internets
I am using J-Link GDB Server to accept GDB clients and execute commands via J-link Commander.
I am using a fully automated python code that needs to send write and read requests to change/read registries in a perihfallical whitin the Cortex-M3. I can execute those commands in the J-Link Commander via mem32 and w4, but I want to connect to J-Link GDB Server via TCP/IP in python and send those requests.
How in gods name can I do this?
Thank you!
For example, if I have my minecraft server running on port 25565, I want to have a python script close the port so that all connections will be dropped and no further connections will be made without having to shutdown the service.
I have tried binding a new socket to the same port number and then closing the socket, but it does not have any effect on the server.
I am working in Python 3.3.
Use a firewall for example?
On linux there is the iptables. It's easy to use and powerful.