Why 'os.system' output is 0 when I try to convert it to a string?

Asked Nov 13 '22 at 15:15

Active Nov 13 '22 at 15:20

Viewed 43 times

why the output is 0 when I try to convert int to a string?
I'm searching how to fix it, but can't find it.

here is my code :

import os
value = "cat /home/username/project/value.txt"
print("the value is : " + str(os.system(value)))

the output is :

726
the value is : 0

i want to make it like this :

the value is : 726

asked Nov 13 '22 at 15:15

Tzy

2

`os.system()` returns the _exit code_ of the process, not its _output_. – John Gordon Nov 13 '22 at 15:17
1

If you want to collect _output_, `os.system()` is the wrong tool for the job. Use the `subprocess` module instead. – Charles Duffy Nov 13 '22 at 15:19

0 Answers0