# File extensions that double as country codes

A Hacker News post highlights programming language file extensions that coincidentally match ISO 3166-1 alpha-2 country codes, such as .py for Paraguay and .go for Gabon. This trivia is interesting for developers and naming enthusiasts, showing unexpected overlaps between tech and geography. It’s a niche curiosity rather than a major technical or geopolitical event.

**Importance:** 2/5

## Sources

### Technology
- [Hacker News](https://www.bruh.ltd/blog/programming-language-file-extensions-that-match-an-iso-3166-1-alpha-2-country-code/) — Fri, 24 Jul 2026 12:34:28 +0000