Introduction and purpose of Python 'Sarge' Library

Python's "Sarge" library is a lightweight library, which aims to simplify interaction with external programs.It provides a simple and powerful way to perform the operation of the command line, and can resolve the output and error information.The library is simple and powerful, making the interaction with external programs easier and efficient. The main purpose of the "Sarge" library is to manage and control the command line tool.It allows you to perform command line operations through the Python script, including running commands, passing parameters, and parsing output.You can use the "SARGE" library to write complex command line tools, control its input and output, and get the corresponding results. For example, suppose you have a Python application that needs to call external programs for image processing.Using the "Sarge" library, you can easily execute the command line operation, pass the image to the external program, and process the returned results.This can not only simplify the code, but also better manage the interactive process of external programs. The following is an example code using the "SARGE" library to explain how to perform the command line operation: python from sarge import run, Capture # Define the command line operation cmd = "ls -l" # Execution command line operation result = run(cmd) # Get command line output output = result.stdout.text # Analysis output information lines = output.split(" ") for line in lines: print(line) In the above code, we introduced the "SARGE" library and defined a command line operation to be executed.By calling the `SARGE.RUN ()` function, we execute the command line operation and store the result in the `result` variable.Then, we can use the `Result.stdout.text` to obtain the output information of the command line, analyze it and further process it. In addition to performing command line operations, the "SARGE" library also provides other functions, such as processing the input and output stream of the command line, overtime control, etc.You can use these functions to process more complicated command line interactions according to specific needs. To use the "Sarge" library, you need to install it first.You can use the following command to install the "SARGE" library: pip install sarge After the installation is completed, you can use the "Sarge" library to manage and execute the command line in the Python application. In short, the Python's "SARGE" library provides a simple and powerful way to perform command line operations and simplify the interactive process with external programs.Whether you want to control the command line tool or handle complex command line interaction, the "SARGE" library is a good choice.