Exception when schema already defined

[jonrbates]

I'm trying to debug my entry script (score.py) and getting

Exception: Error, output schema already defined for function: __main__.run.

after running a second time.

Is the assertion necessary?

 251 if OUTPUT_SCHEMA_ATTR in __functions_schema__[base_func_name].keys():
--> 252 raise Exception('Error, output schema already defined for function: {}.'.format(base_func_name))

It makes it difficult to debug.

[jonrbates]

Note this happened when I was defining schema inference and run() in the jupyter cell.