Python 3.15 has reached Release Candidate 1, and the final release is expected on October 1, 2026.
I went through the changes and tried to summarize the ones that seem most relevant for everyday Python development without going through all the PEP numbers.
Faster startup with lazy imports
Python 3.15 introduces lazy imports, which means some modules can be loaded only when they are actually needed instead of being loaded immediately.
This could help applications and CLI tools that spend a noticeable amount of time importing modules before doing any actual work.
