I am writing a Python script that has to call a second python script which has input fields. The normal way to call the second script in Linux command window is:
python 2ndpythonscript.py input_variable output_variable
Now, I want to call this script from inside the first script. How do I do it? Thanks in advance.
Use the subprocess module, e.g.:
import subprocess
retcode = subprocess.call(['python', '2ndpythonscript.py', 'input_variable', 'output_variable'])
There are different specialized functions in the module which you can use if you want only the return code, only the output, both, stdout/stderr redirected in custom pipes and so on.
Use subprocess.check_call, any non-zero exit status will raise an error:
from subprocess import check_call
check_call(["python", "2ndpythonscript.py" ,"input_variable" ,"output_variable"])
Or check_output if you want to get the output:
from subprocess import check_output
out = check_output(["python", "2ndpythonscript.py" ,"input_variable" ,"output_variable"])
