Yep. And while that’s not something I’d call a mistake per se, it can be troublesome. What if a crate you depend on at different versions provides access to glo

Yep. And while that’s not something I’d call a mistake per se, it can be troublesome. What if a crate you depend on at different versions provides access to global state? What if a transitive embeds definitions from that crate into public contracts consumed by code using a different version? Rust offers mitigations or means of detection for those cases, but they still require thought and troubleshooting when they occur. Given Python’s lack of static typing and more-likely-to-be-nonexpert user base and usage patterns, I suspect that troublesomeness would not be a value-add for the Python platform.