If you've ever had a customer ask for a product you thought you had in stock—only to discover you're completely out—you know the pain.

I run a small e-commerce operation, and for the first two years I tracked inventory in a spreadsheet. I'd forget to check it, run out of things I didn't realize I was running out of, and lose sales.

Then I spent an afternoon writing this Python script. Now I get an email every morning showing me what's low, and another alert the moment anything hits my reorder threshold.

Zero stockouts in the last 8 months.

The Script

import smtplib import csv from email.mime.text import MIMEText from email.mime.multipart import MIMEMultipart from datetime import datetime

# Configure these EMAIL_FROM = " [email protected] " EMAIL_TO = " [email protected] " EMAIL_PASSWORD = " your-app-password " REORDER_THRESHOLD = 5 # Alert when quantity drops below this def load_inventory ( filename = " inventory.csv " ): """ Load inventory from CSV file.…