Pricefx Automation Script

I want a lightweight script that connects to my Pricefx tenant through OAuth or an API token, pulls price data directly from an Excel file, and uploads that file automatically.

Core workflow I expect:
• Read the latest Excel price sheet and map each column to the correct Pricefx attributes.
• Create or update the relevant price lists inside Pricefx.
• Assign every SKU to its proper segment using simple, category-based filters.
• Apply if/then logic for uplifts so each item receives the right adjustment before the list is finalized.

I only need a one-time executable script (Python or Node.js preferred) rather than a constantly running service. Please include:
1. Clean, well-commented source code.
2. A short README with setup instructions and command examples.
3. A brief hand-off call or video explaining how to change file paths, credentials, and uplift rules.

You’ll receive my API credentials and any Pricefx documentation I have once we begin. Let me know if you need sample data or further clarification on the uplift logic.