Kolkata Python App Installation Help

I have a small Windows machine in Kolkata that needs to run a single script (app.py). Python is not yet installed, so the job begins with setting up the correct Python version, adding it to PATH, and then resolving any package dependencies the script may call for (pip install, virtualenv, etc.)... (Budget: ₹12500 - ₹37500 INR, Jobs: App Development, Linux, Python, Scripting, Software Architecture, TeamViewer, Technical Support, Ubuntu)