Flexcache: Disk-based object caching

flexcache is a Python library (current version 0.3) designed to cache transformed versions of source objects to disk. It provides a robust and extensible framework for managing expensive calculations by storing their results persistently. The library allows for flexible cache invalidation strategies based on file modification time or content hash. It is currently in a pre-1.0 release, suggesting an active development cadence with potential for future changes.