Python Subprocess Parameters Guide

The main parameters of the subprocess module in Python are as follows:

1. args: a command or list of commands to be executed, which can be either a string or a list.
2. bufsize: specifies the size of the buffer.
3. executable: specifies the executable program to be used.
4. stdin: Specifies the standard input for the child process.
5. stdout: used to specify the standard output of the subprocess.
6. stderr is used to specify the standard error output of a subprocess.
7. Shell: Specify whether to use a shell to execute the command.
8. cwd: used to specify the current working directory of the child process.
9. env: specifies the environment variables for the child process.
10. universal_newlines: specifies whether to handle input and output data in text mode.
11. encoding: specifies the format of the input and output data.
12. Errors: Specifies the strategy for handling encoding errors.
13. timeout: specifies a time limit; if the child process runs for longer than this limit, it will be terminated.

These parameters can be set according to actual needs to control and manage the child processes.