These circumstances are no where near the same: Swift is a compiled language, and they carefully made the decision to embed all of Swift and its runtime libraries in your application, allowing them to break things without disrupting existing applications and without needing backwards compatibility cruft in their operating system. They also have essentially been actively discouraging people from writing libraries in Swift by pointing out constantly that there is not a stable ABI, so you only see a small handful of things written for it in comparison to Python.