Python
Camel supports Python among other Scripting Languages to allow an Expression or Predicate to be used in the DSL or Xml Configuration.
To use a Python expression use the following Java code
import static org.apache.camel.builder.script.ScriptBuilder.*; ... ... python("somePythonExpression") ...
For example you could use the python function to create an Predicate in a Message Filter or as an Expression for a Recipient List