Skip to main content

libmemcached wrapper

Project description

pylibmc is a Python wrapper around the accompanying C Python extension _pylibmc, which is a wrapper around libmemcached from TangentOrg.

You have to install libmemcached separately, and have your compiler and linker find the include files and libraries.

With libmemcached installed and this package set up, the following basic usage example should work:

>>> import pylibmc
>>> mc = pylibmc.Client(["127.0.0.1:11211"])
>>> mc.set("foo", "Hello world!")
True
>>> mc.get("foo")
'Hello world!'

The API is pretty much python-memcached. Some parts of libmemcached aren’t exposed yet. I think.

Behaviors

libmemcached has ways of telling it how to behave. You’ll have to refer to its documentation on what the different behaviors do.

To change behaviors, quite simply:

>>> mc.behaviors["hash"] = "fnv1a_32"

For a list of the defined behavior key names, see what the keys of a client is. For example:

>>> mc.behaviors.keys()  # doctest: +NORMALIZE_WHITESPACE
['hash', 'connect timeout', 'cache lookups', 'buffer requests',
 'verify key', 'support cas', 'poll timeout', 'no block', 'tcp nodelay',
 'distribution', 'sort hosts']

The hash and distribution keys are mapped by the Python module to constant integer values used by libmemcached. See pylibmc.hashers and pylibmc.distributions.

Comparison to other libraries

Why use pylibmc? Because it’s fast.

See this (a bit old) speed comparison.

IRC

#sendapatch on chat.freenode.net.

Compiling on Snow Leopard

Since, for some reason, compiling Python extensions under Mac OS X 10.6 won’t use the proper -arch flag to gcc, here’s how you’d do it:

$ CFLAGS="-arch x86_64" LDFLAGS="-arch x86_64" python setup.py build

Change Log

New in version 0.7

  • Restructured some of the code, which should yield better performance (if not for that, it reads better.)

  • Fixed some memory leaks.

  • Integrated changes from amix.dk, which should make pylibmc work under Snow Leopard.

  • Add support for the boolean datatype.

New in version 0.6

  • Added compatibility with libmemcached 0.26, WRT error return codes.

  • Added flush_all and disconnect_all methods.

  • Now using the latest pickling protocol.

New in version 0.5

  • Fixed lots of memory leaks, and added support for libmemcached 0.23.

  • Also made the code tighter in terms of compiler pedantics.

New in version 0.4

  • Renamed the C module to _pylibmc, and added lots of libmemcached constants to it, as well as implemented behaviors.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

pylibmc-0.7.tar.gz (12.9 kB view details)

Uploaded Source

File details

Details for the file pylibmc-0.7.tar.gz.

File metadata

  • Download URL: pylibmc-0.7.tar.gz
  • Upload date:
  • Size: 12.9 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No

File hashes

Hashes for pylibmc-0.7.tar.gz
Algorithm Hash digest
SHA256 9d711846034d776220fc16edfcf2c084d753bb1510149c9b446031b6f25e76b4
MD5 03036ef30fc245bb7cd932eb9edf9c49
BLAKE2b-256 2076f91c9f9a65cfd0c1e0d5754855ba8e67c9249492380c97f607a32ad7e265

See more details on using hashes here.

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page