Structured programming introduced the enum datatype which defines a set of enumerated values for a type. Enums have been adopted among most of the popular programming languages today. Even if there is no specific language support, enums can often be simulated.

In this session we want to discuss where to use enums, how to simulate them before python 3.4 and the newly accepted PEP 435.

http://www.python.org/dev/peps/pep-0435/