return value from one python script to another

Question

I have two files: script1.py and script2.py. I need to invoke script2.py from script1.py and return the value from script2.py back to script1.py. But the catch is script1.py

Answer 1

Ok, if I understand you correctly you want to:

• pass an argument to another script
• retrieve an output from another script to original caller

I'll recommend using subprocess module. Easiest way would be to use check_output() function.

Run command with arguments and return its output as a byte string.

Sample solution:

script1.py

import sys
import subprocess
s2_out = subprocess.check_output([sys.executable, "script2.py", "34"])
print s2_out

script2.py:

import sys
def main(arg):
    print("Hello World"+arg)

if __name__ == "__main__":
    main(sys.argv[1])