Contact List Cleanup
Contact List Cleanup is a Python program built to finally tackle my Google Address Book: after importing roughly 15,000 student records from a leadership community I volunteer with, messaging apps connected me with strangers from the database. The tool deletes the database noise while keeping the records of genuine friends.
Highlights
- Data-quality criteria: keep records with multiple phone numbers, multiple labels, or labeled phone numbers — signals that separate personal contacts from imported database rows.
- Chain of Responsibility: each keep-criterion is a handler in a chain; any handler can spare a record from deletion, and new criteria drop in without touching existing logic.
- Rate-limiting Decorator: Google People API calls wrapped with a decorator that paces them under the 90-calls-per-minute limit — replacing reactive exponential backoff (sawtooth spikes and 429 bursts) with a smooth, steady call rate.
- Python + Google People API, with metric charts of the before/after API behavior documented in the README.