I think it's largely because ruby use is dominated by a single, pure ruby application domain: rails. Once rails supports the new version, it's easy to move. g

I think it's largely because ruby use is dominated by a single, pure ruby application domain: rails. Once rails supports the new version, it's easy to move. google "ruby programming" 3.5M hits and "ruby programming rails" 1.6M hits. In contrast, python has many different application domains, each with their own dependencies that need to be updated, and native code extensions are much more common. "python programming" 38M hits, no single application is a significant percentage.