Python Standard output redirection

1. Python calls other programs

Os.system () method

The system () function in the OS module makes it easy to run other programs or scripts. Its function prototypes are:
Os.system (command)
command to execute commands similar to those entered in the Windows CMD window.

If you want to pass parameters to a program or script, you can use a space-delimited program and multiple parameters.

Subprocess.call () Method Example demonstrates:

Open Notepad:

1 Import os2 Os.system (' Notepad ')

Or

1 Import subprocess2 subprocess.call (' Notepad ')

Let's look at the following code:

1 Import os2 Os.system (R ' "D:\Program Files (x86) \netease\cloudmusic\cloudmusic.exe")

This code will start the NetEase cloud music, the effect and we enter "D:\Program Files (x86) \netease\cloudmusic\cloudmusic.exe" effect in the cmd window. Note that the string contains spaces, so there is R '.

The following code can also implement the same functionality:

1 Import subprocess2 Subprocess.call ("D:\Program Files (x86) \netease\cloudmusic\cloudmusic.exe")

2. Python output redirection

3. Call cmd (Windows) or shell (Linux) output redirection

4. Function result Redirection

Python Standard output redirection