PythonOrekitFixedHandler is not imported in orekit_jpype

1

Hey, folks!

I am doing a lot of algorithms, with submodules, in order to have it better structured.

I am using orekit_jpype, however I stumbled in an error with PythonOrekitFixedHandler.

All imports work correctly, I have my orekit-data.zip assigned in my codes and functions. I am using a venv where I installed orekit_jpype.

When I try to run, I get this error

 File "/home/rodrigo.santos/Documents/git/python-workspace/projects/matool/src/decay/common.py", line 3, in <module>
    from org.orekit.propagation.sampling import PythonOrekitFixedStepHandler
  File "/home/rodrigo.santos/miniconda3/lib/python3.12/site-packages/jpype/imports.py", line 203, in find_spec
    raise ImportError("Failed to import '%s'" % name) from ex
ImportError: Failed to import 'org.orekit.propagation.sampling.PythonOrekitFixedStepHandler'

Does anybody know whether that a bad import from my side or it’d a bug?

2

I tested by changing the import library from orekit_jpype to orekit in another env, and it imported without any issues.

3

Hi @rodreras ,

Yes the PythonOrekitFixedStep handler is only in the “orekit” (JCC version) of the wrapper and only needed when subclassing. As subclassing is not possible, and only implementation of interfaces in orekit_jpype there is no need of these special Python-classes. If you are starting new on a project I would recommend to go with the orekit_jpype version, it is closer to the java version.