python memcache interface
pyermc is a memcache client library with support for “pluggable” driver backends.
Current backends include a text protocol driver (default), a binary protocol driver, and a wrapped ultramemcached driver.
While pyermc is somewhat compatible with python-memcached, full compatibility is not a design goal.
pyermc supports connecting to a single memcached instance (or server that speaks the memcached protocol). If you require multiple servers, consistent hashing, etc, then it is recommended to use twemproxy or similar.
pyermc exposes connectivity faults, via exceptions, to the calling code. This is in contrast to python-memcached, which simply enters an ‘ignore backend’ state. Exposing underlying faults is often needed when working with queueing servers that support the memcache driver (such as kestrel and darner), as well as translation proxies like couchbase’s moxie. If the old behavior is desired, there is an optional error_as_miss parameter that may be set as part of client creation.