TIL–Python has a built-in persistent key-value store (2018)

• CPython

  1,310 59,431 10.0 Python

  The Python programming language

  

FWIW, it was added in 1992. https://github.com/python/cpython/commit/dd9ed839d6958f73704... with gdbm added in 1994. https://github.com/python/cpython/commit/4b4c664d2e93279c8d7... .

• shelfcache

  1 4 10.0 Python

  Discontinued A persistent thread- and multiprocess-safe caching store including a wrapper around requests.get()

I once wrote a locking wrapper around the shelve module so I could use it as a thread- and multiprocess-safe key-value cache (including a wrapper around the requests modules `get()` to transparently cache/validate http resources according to headers):

https://github.com/cristoper/shelfcache

It works despite some cross-platform issues (flock and macos's version of gdbm interacting to create a deadlock), but if I were to do again I would just use sqlite (which Python's standard library has an interface for).

• InfluxDB

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