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A comprehensive, fast, pure-Python memcached client.

pymemcache supports the following features:

• Complete implementation of the memcached text protocol.
• Connections using UNIX sockets, or TCP over IPv4 or IPv6.
• Configurable timeouts for socket connect and send/recv calls.
• Access to the "noreply" flag, which can significantly increase the speed of writes.
• Flexible, modular and simple approach to serialization and deserialization.
• The (optional) ability to treat network and memcached errors as cache misses.

Install from pip:

pip install pymemcache

For development, clone from github and run the tests:

git clone https://github.com/pinterest/pymemcache.gitcd pymemcache

Run the tests (make sure you have a local memcached server running):

tox

See the documentation here:https://pymemcache.readthedocs.io/en/latest/

Since version 3.2, Django has included a pymemcache-based cache backend.Seeits documentation.

On older Django versions, you can usedjango-pymemcache.

The pylibmc library is a wrapper around libmemcached, implemented in C. It isfast, implements consistent hashing, the full memcached protocol and timeouts.It does not provide access to the "noreply" flag. It also isn't pure Python,so using it with libraries like gevent is out of the question, and itsdependency on libmemcached poses challenges (e.g., it must be built againstthe same version of libmemcached that it will use at runtime).

The python-memcached library implements the entire memcached text protocol, hasa single timeout for all socket calls and has a flexible approach toserialization and deserialization. It is also written entirely in Python, soit works well with libraries like gevent. However, it is tied to using threadlocals, doesn't implement "noreply", can't treat errors as cache misses and isslower than both pylibmc and pymemcache. It is also tied to a specific methodfor handling clusters of memcached servers.

The team at mixpanel put together a pure Python memcached client as well. Ithas more fine grained support for socket timeouts, only connects to a singlehost. However, it doesn't support most of the memcached API (just get, set,delete and stats), doesn't support "noreply", has no serialization ordeserialization support and can't treat errors as cache misses.

The memcached text protocol reference page:

https://github.com/memcached/memcached/blob/master/doc/protocol.txt

The python-memcached library (another pure-Python library):

https://github.com/linsomniac/python-memcached

Mixpanel's Blog post about their memcached client for Python:

https://engineering.mixpanel.com/we-went-down-so-we-wrote-a-better-pure-python-memcache-client-b409a9fe07a9

Mixpanel's pure Python memcached client:

https://github.com/mixpanel/memcache_client

Bye-bye python-memcached, hello pymemcache (migration guide)

https://jugmac00.github.io/blog/bye-bye-python-memcached-hello-pymemcache/

• Charles Gordon
• Dave Dash
• Dan Crosta
• Julian Berman
• Mark Shirley
• Tim Bart
• Thomas Orozco
• Marc Abramowitz
• Marc-Andre Courtois
• Julien Danjou
• INADA Naoki
• James Socol
• Joshua Harlow
• John Anderson
• Adam Chainz
• Ernest W. Durbin III
• Remco van Oosterhout
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• Joe Gordon
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• Stephen Rosen
• Feras Alazzeh
• Moisés Guimarães de Medeiros
• Nick Pope
• Hervé Beraud
• Martin Jørgensen
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