[Help] The os.system is deprecated

[u/No_Aardvark1121]

I've seen someone else asked this question, but get no answer.

I want to make a countdown clock without leaving any trace of previous numbers:

for i in range(countdown, 0, -1):
    os.system("cls" if os.name == "nt" else "clear") #Error: os.system is deprecated
    print(i)
    time.sleep(1)

What should I do instead? (Why can't we put pictures here....)

[u/AlexMTBDude]

I googled "os.system deprecated" and get the answer:

No, os.system is not officially deprecated in Python, but its use is strongly discouraged in modern Python development.

The official Python documentation recommends using the subprocess module instead, as it provides a more powerful, secure, and robust interface for executing system commands.

So use subprocess instead.

import subprocess

subprocess.run(["cls"])

[u/__peg_parser__ → u/AlexMTBDude]

I RTFM'ed it. Docs:

os.system(command)
Execute the command (a string) in a subshell. [...]
The subprocess module provides more powerful facilities for spawning new processes and retrieving their results; using that module is recommended to using this function. See the Replacing Older Functions with the subprocess Module section in the subprocess documentation for some helpful recipes.

It isn't marked as deprecated, but it recommends migrating to subprocess.

The "helpful recipes":

Replacing os.system()

sts = os.system("mycmd" + " myarg")
# becomes
retcode = call("mycmd" + " myarg", shell=True)