如何避免弹出cmd？

Question

I am writing a program which has to call another program. So I've done some research and found the os module. The problem with this solution is that the cmd always pops up. How can I avoid this?

So far I used the command like this: os.system("something.py")

Answer 1

What you are looking for is probably found in the subprocess module.

Now there is not really any detail as to what you are trying to do when something.py runs, so lets say we have a file called test.py that creates a new file and writes something:

test.py

t = r"C:\Users\Paul\Desktop\test.txt"

with open(t, 'w') as f:
    f.write("This worked!")

So in whatever program we want to run test.py , we would have the following:

import subprocess
f = r"C:\Users\Paul\Desktop\test.py"
subprocess.run(f, shell=True) # shell=True since this is really an arg

And the program will execute without opening a terminal. See here:

>>> import subprocess
>>> f = r"C:\Users\Paul\Desktop\test.py"
>>> subprocess.run(f, shell=True)
CompletedProcess(args='C:\\Users\\Paul\\Desktop\\test.py', returncode=0)