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Description:

processwrapper 0.3.0

Process Wrapper is a simple module that executes a command-line style
program via a context manager. This is useful if you want your script
to do something that relies on a background process.
This module is conceived because of a need to automate the setup and
teardown of the Django server when running Robotframework tests. Sample
usage would look like this:
#!/usr/bin/env python

import robot
from processwrapper import run_process

with run_process('python manage.py runserver'):
robot.run('blackbox_test.robot')
Right now, the process being run is forcefully terminated with a SIGKILL
or equivalent signal on context exit. Caution is advised.

To install
Run in command line:
pip install process-wrapper

Dependencies
psutil

Tested Capabilities

Kills parent and child processes on exit
Handles in-context exceptions: It still kills the called process and its children
Processes are properly cleaned up when in-context exceptions occur
Process wrapper will do nothing if it encounters a Process Not Found exception for the parent process and raise all others
Tested to work in win32 and linux2 platforms

Test Command
Command used to test the module. Includes line and branch coverage:
py.test processwrapper/tests --cov processwrapper --cov-report term-missing --pep8

Thanks to
jung rhew for providing
the basis of process teardown code that I used