grantjenks/python-diskcache

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

2906 stars · 178 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

DiskCache is a pure-Python disk and file backed cache library with a Django-compatible API, built on SQLite and memory-mapped files. It provides persistent key-value caching with eviction policies (LRU/LFU), tag metadata, memoization, and thread/process safety without needing a separate cache server.

Use cases

• cache gigabytes of data on disk instead of RAM in Python
• replace Redis or Memcached for local caching without running a server
• add a fast persistent cache backend to Django
• memoize expensive function results across processes
• persist a key-value store with expiration and eviction policies
• speed up web crawlers or batch jobs with a persistent queue and cache

When to choose

• you want caching without deploying or maintaining a separate Redis/Memcached server
• your cache is larger than available memory and should persist across restarts
• you need a Django cache backend that scales better than the built-in filesystem cache
• you need thread-safe and process-safe caching in pure Python with no C compiler

When to avoid

• you need a shared network cache across many machines
• your workload is write-heavy and disk I/O latency is unacceptable
• you need advanced Redis features like pub/sub, replication, or data structures beyond key-value
• you require an actively maintained project with frequent releases

Facets

library · maturity stable

caching serialization databases web-development developer-tools performance python cross-platform disk-cache key-value-store django-cache-backend sqlite persistent-cache memoization pure-python

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