How many days until the deadline in Python? Subtracting dates across months

"The deadline is the 5th of next month. I wonder how many days are left from the 28th of this month." Do you ever find ...

When names are slightly different, reconciling two lists becomes a nightmare—A sorting tool in Python [with code + prompt for creation]

Comparing two lists to find the same items. Rosters and lists, applications and receipts, invoices and payments. Even though ...