How to execute a python script and write output to txt file?

Question

I\'m executing a .py file, which spits out a give string. This command works fine

execfile (\'file.py\')

But I want the output (in addition to it being shown

Answer 1

This'll also work, due to directing standard out to the file output.txt before executing "file.py":

import sys

orig = sys.stdout
with open("output.txt", "wb") as f:
    sys.stdout = f
    try:
        execfile("file.py", {})
    finally:
        sys.stdout = orig

Alternatively, execute the script in a subprocess:

import subprocess

with open("output.txt", "wb") as f:
    subprocess.check_call(["python", "file.py"], stdout=f)

If you want to write to a directory, assuming you wish to hardcode the directory path:

import sys
import os.path

orig = sys.stdout
with open(os.path.join("dir", "output.txt"), "wb") as f:
    sys.stdout = f
    try:
        execfile("file.py", {})
    finally:
        sys.stdout = orig