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# betty.cache.file module

Provide caching that persists cache items to files.

final class betty.cache.file.BinaryFileCache

  Bases: `_FileCache`[`bytes`]

  Provide a cache that persists bytes values to binary files.

  cache_item_file_path(cache_item_id: str) → Path

    Get the file path for a cache item with the given ID.

    The cache item itself may or may not exist.

  property path: Path

    The path to the cache’s root directory.

final class betty.cache.file.PickledFileCache

  Bases: `_FileCache`[`_CacheItemValueContraT`], `Generic`[`_CacheItemValueContraT`]

  Provide a cache that pickles values and persists them to files.