com.rapidminer.operator.UserError: The dummy operator Execute Python (replacing python_scripting:exe

hughesfleming68

Sorry, for the obscure problem but here goes...

I am converting over some processes to 9.2. Some of these I execute from the command line by building a jar in IntelliJ. If the process uses execute R or execute Python, I get an error if I try and run the jar directly. Processes without either operator work fine and if I run the code in the IDE it also works. This is something new. I did not have this problem in earlier versions of Rapidminer. 

The obvious workaround is to just not do this and use Python but I figured I would mention it as it used to work.

David_A

Hi,

just asking the obvious question first:

Is the Python extension correctly installed?

The error message indicates that RapidMiner cn't find the operator (what normally means the extension is not installed or loaded).

Best,
David

hughesfleming68

Hi David,

Yes, I can run the process in Rapidminer and also in the IDE by just hitting run. I am getting the problem after I have built the jar. Jars that don't call either Python or R work fine if I execute them from the command line.

regards,

Alex

hughesfleming68

I just tested this again on another machine with a previous version of Rapidminer and I could build the jar in IntelliJ without problems. This process was using Execute R and Execute Python with no issues. I am pretty sure that I can work around this. My guess is that the latest operators behave differently than the older ones in some way.

hughesfleming68

I have a workaround which required installing an earlier version of Rapidminer which worked and then installing 9.2 in a new Rapidminer home directory. This is fine for what I have to do.