python automation

[nilamo]

Let's say I have two files, spam.py and eggs.py.

Here's spam.py:

import sys

for line in sys.stdin:
    print(line.upper())

And here's eggs.py:

import subprocess

process = subprocess.Popen("python ./spam.py", stdout=subprocess.PIPE,
                           stderr=subprocess.PIPE, stdin=subprocess.PIPE)
output, errors = process.communicate(b'testing')
print(output)

Running eggs.py gives this output:

Output:
> python eggs.py
b'TESTING\r\n'