Will Knime support saving or loading the model in pickle format?? I think the python script only support jython code as per documentation can someone tell me whether it will also support python code.

A few things. The paths seem to be different on MacOS and Windows so you end up with a path with / and \ which is not good (maybe the os.sep is not adequate). And your pickle files have different names (did not immediately spot that).

Attached a new modified workflow that does work.

kn_example_python_logistic_regression_iris.knwf (58.5 KB)