arb_launcher

arb_launcher is a Python package that provides a simple yet powerful way to launch and manage detached programs and methods. It allows you to run external programs or Python methods in a completely detached process, making them independent of the parent process.

Features

• Launch external programs and Python methods as detached processes
• Redirect the stdout and stderr of the detached process to specific files (/dev/null by default so that the output is never printed to the console)
• Terminate matching processes based on their names and arguments
• Fully daemonized processes, making them independent of the parent process and allowing them to run in the background

Installation

To install arb_launcher, simply clone the repository and run the following command:

pip install arb_launcher

Usage

arb_launcher provides a simple command-line interface for launching detached programs. You can also use it as a method or library in your Python projects.

Command-Line Interface

To use the command-line interface, simply run:

arb_launcher <program> [args] [--stdout <stdout_file>] [--stderr <stderr_file>]

Simplified Launch Method

The arb_launcher package also provides a simplified method, launch_detached, for quickly launching detached programs or methods:

from arb_launcher.launcher import launch_detached

launch_detached(target, args, stdout=None, stderr=None)

target can be either a string representing the command or a callable Python method.

args should be a list of arguments, if any.

stdout and stderr are optional parameters to redirect the output to specific files.

Example

Here's an example of how to use the simplified launch_detached method to launch a detached Python method:

from arb_launcher.launcher import launch_detached

def my_method(arg1, arg2):
    # Your code here

launch_detached(my_method, args=['arg1', 'arg2'], stdout='output.log', stderr='error.log')

Python API

To use the arb_launcher package in your Python project, first import the ProgramHandler class:

from arb_launcher.program_handler import ProgramHandler

Then, create a ProgramHandler object and call the launch() method:

handler = ProgramHandler(target, args, stdout, stderr)
handler.launch()

target can be either a string representing the command or a callable Python method.

args should be a list of arguments, if any.

stdout and stderr are optional parameters to redirect the output to specific files.

Example

Here's an example of how to use the arb_launcher package to launch a detached Python method:

from arb_launcher.program_handler import ProgramHandler

def my_method(arg1, arg2):
    # Your code here

handler = ProgramHandler(my_method, args=['arg1', 'arg2'], stdout='output.log', stderr='error.log')
handler.launch()