How do you call a script written in another language in Python?
You can use the subprocess module.
Run
Let’s say you have the bash script hello_world.sh:
echo Hello, world!
In your Python script, use subprocess.run:
import subprocess
subprocess.run(["bash", "hello_world.sh"])
If subprocess.run isn’t available (Python <3.5), use subprocess.call instead:
subprocess.call(["bash", "hello_world.sh"])
When you run your Python script in your command-line:
python main.py # Hello, world!
Output
To get the output of the script, use subprocess.Popen to get the process:
import subprocess
proc = subprocess.Popen("bash hello_world.sh", shell=True, stdout=subprocess.PIPE)
Then read stdout with Popen.communicate:
outs, errs = proc.communicate()
Alternatively, you can use stdout.read:
outs = proc.stdout.read()
Decode the binary and print the string:
print(outs.decode("ascii"))