Python API reference

Moruna requires Python 3.14 or later and pyarrow>=17. The names below are available from import moruna, except the functions under moruna.std. moruna.__version__: str is the installed package version.

Reference	What you can look up
moruna.run	All run arguments, defaults, return value and failures.
Kernels	moruna.kernel, KernelSpec, moruna.polars, state methods and declarations.
Sources	Built-in constructors, Source methods and Split attributes.
Sinks	Built-in constructors and Sink methods.
Standard kernels	Every moruna.std function and StdKernel attributes.
Results and errors	RunReport, inspect_host, and the exception hierarchy.

For longer examples, see Running jobs from Python, Writing kernels, and Custom sources and sinks.