How to use Python 'Sarge' for sub -process management

There are many methods in Python to manage sub -processes, and one of the powerful libraries is 'SARGE'.'Sarge' can help you create and manage sub -processes in Python, and provide powerful functions to process input, output and errors.This article will introduce you to how to use Python 'Sarge' for sub -process management, and provide you with a complete programming code and related configuration description. First, you need to install the 'Sarge' library.Perform the following commands in the command line to install: pip install sarge After the installation is completed, we can start using 'Sarge' for sub -process management. First of all, let us start with a simple example, and this example will execute a command in Python and print out the output. python from sarge import run # Execute commands and get output result = run('ls -l', capture_stdout=True) # Print command output print(result.stdout.text) In this example, we introduced the 'Run' function, which is used to execute commands.We pass the commands that execute the execution string to the 'Run' function.We also set the 'Capture_Stdout' parameter to true to capture the standard output of the command. After executing the command, the 'run' function returns a 'Command' object, and we can obtain the output of the command through the 'Stdout' property.Finally, we print out the output results with the 'Print' function. Next, let's see a slightly more complicated example, which will show how to create a child process and interact with it. python from sarge import run, Capture # 子 p = run('python', input='print("Hello, World!") ', capture_stdout=True) # Get the output of the sub -process output = p.stdout.text # Print output print(output) In this example, we use the 'Run' function to create a sub -process. The child process will execute the Python command and use the 'input' parameter to pass a Python code.We also set the 'capture_stdout' parameter to true to get the standard output of the child process. Then, we use the 'Stdout' attribute to obtain the output and print the output results through the 'Print' function. In addition to the above examples, 'Sarge' also provides many other functions, such as the standard errors of the child process, the end of the waiting child process, and the timeout of the settings.For more detailed functional usage and configuration, please refer to the 'Sarge' document. To sum up, through the 'Sarge' library, we can create and manage sub -processes in Python.It provides a simple API to make the input, output and errors of processing sub -processes more convenient.Through the above examples, you can quickly get started 'sarge' and start using it to manage the process.