[jira] [Created] (SYSTEMML-1891) Python toNumPy() example results in exception: Script string is blank

["Glenn Weidner (JIRA)" <ji...@apache.org>]

Glenn Weidner created SYSTEMML-1891:
---------------------------------------

             Summary: Python toNumPy() example results in exception: Script string is blank
                 Key: SYSTEMML-1891
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1891
             Project: SystemML
          Issue Type: Bug
            Reporter: Glenn Weidner
            Assignee: Glenn Weidner


Running the first example from http://apache.github.io/systemml/beginners-guide-python#matrix-operations results in exception:

{code:java}
   m4.sum(axis=1).toNumPy()
  File “/usr/local/lib/python2.7/site-packages/systemml/defmatrix.py”, line 498, in toNumPy
    self.eval()
  File “/usr/local/lib/python2.7/site-packages/systemml/defmatrix.py”, line 480, in eval
    eval([self])
  File “/usr/local/lib/python2.7/site-packages/systemml/defmatrix.py”, line 328, in eval
    results = matrix.ml.execute(matrix.script)
  File “/usr/local/lib/python2.7/site-packages/systemml/mlcontext.py”, line 722, in execute
    return MLResults(self._ml.execute(script_java), self._sc)
...
py4j.protocol.Py4JJavaError: An error occurred while calling o55.execute.
: org.apache.sysml.api.mlcontext.MLContextException: Exception when executing script
    at org.apache.sysml.api.mlcontext.MLContext.execute(MLContext.java:359)
    at org.apache.sysml.api.mlcontext.MLContext.execute(MLContext.java:332)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:237)
    at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
    at py4j.Gateway.invoke(Gateway.java:280)
    at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
    at py4j.commands.CallCommand.execute(CallCommand.java:79)
    at py4j.GatewayConnection.run(GatewayConnection.java:214)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.sysml.api.mlcontext.MLContextException: Script string is blank
    at org.apache.sysml.api.mlcontext.ScriptExecutor.checkScriptHasTypeAndString(ScriptExecutor.java:571)
    at org.apache.sysml.api.mlcontext.ScriptExecutor.setup(ScriptExecutor.java:372)
    at org.apache.sysml.api.mlcontext.ScriptExecutor.compile(ScriptExecutor.java:303)
    at org.apache.sysml.api.mlcontext.ScriptExecutor.compile(ScriptExecutor.java:268)
    at org.apache.sysml.api.mlcontext.ScriptExecutor.execute(ScriptExecutor.java:345)
    at org.apache.sysml.api.mlcontext.MLContext.execute(MLContext.java:355)
    ... 12 more
{code}





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