wexpect-venv/examples/python.py

'''
This example script runs foo python program, and communicates with it. For better understanding
please run natively foo.py first, which is a very basic stdio handler script.
'''

import sys
import wexpect
import os

here = os.path.dirname(os.path.realpath(__file__))

# Path of python executable:
pythonInterp = sys.executable
prompt = ': '

# Start the child process
p = wexpect.spawn(pythonInterp, [here + '\\foo.py'])

# Wait for prompt
p.expect(prompt)
print(p.before)

# Send the 'small integer'
p.sendline('3')
p.expect(prompt)
print(p.before)

# print the texts
print(p.before, end='')
print(p.match.group(0), end='')

# Send the name
p.sendline('Bob')

# wait for program exit.
p.wait()

# print the texts
print(p.read(), end='')