CheeseRater

simplejson is a simple, fast, complete, correct and extensible
JSON encoder and decoder for Python 2.3+. It is
pure Python code with no dependencies, but includes an optional C
extension for a serious speed boost.

simplejson was formerly known as simple_json, but changed its name to
comply with PEP 8 module naming guidelines.

The encoder may be subclassed to provide serialization in any kind of
situation, without any special support by the objects to be serialized
(somewhat like pickle).

The decoder can handle incoming JSON strings of any specified encoding
(UTF-8 by default).