如何使用python在可执行输出中搜索文本字符串？

Question

I'm trying to create a python script to auto update a program for me. When I run program.exe --help, it gives a long output and inside the output is a string with value of "Version: XXX" How can I make a script that runs the command and isolates the version number from the executable's output?

I should have mentioned that I tried the following:

import re 
import subprocess

regex = r'Version: ([\d\.]+)'

match = re.search(regex, subprocess.run(["program.exe", "--help"])) 

print((match.group(0)))  

and got the error:

Traceback (most recent call last):
  File "run.py", line 6, in <module>
    match = re.search(regex, subprocess.run(["program.exe", "--help"]))
  File "C:\Python37\lib\re.py", line 183, in search
    return _compile(pattern, flags).search(string)
TypeError: expected string or bytes-like object

Answer 1

这样的事情应该工作：

re.search(r'Version: ([\d\.]+)', subprocess.check_output(['program.exe', '--help']).decode()).group(1)