[jira] [Created] (SPARK-8763) executing run-tests.py with Python 2.6 fails with absence of subprocess.check_output function

["Tomohiko K. (JIRA)" <ji...@apache.org>]

Tomohiko K. created SPARK-8763:
----------------------------------

             Summary: executing run-tests.py with Python 2.6 fails with absence of subprocess.check_output function
                 Key: SPARK-8763
                 URL: https://issues.apache.org/jira/browse/SPARK-8763
             Project: Spark
          Issue Type: Bug
          Components: PySpark
    Affects Versions: 1.5.0
         Environment: Mac OS X 10.10.3 Python 2.6.9 Java 1.8.0 
            Reporter: Tomohiko K.


Running run-tests.py with Python 2.6 cause following error:

{noformat}
Running PySpark tests. Output is in python//Users/tomohiko/.jenkins/jobs/pyspark_test/workspace/python/unit-tests.log
Will test against the following Python executables: ['python2.6', 'python3.4', 'pypy']
Will test the following Python modules: ['pyspark-core', 'pyspark-ml', 'pyspark-mllib', 'pyspark-sql', 'pyspark-streaming']
Traceback (most recent call last):
  File "./python/run-tests.py", line 196, in <module>
    main()
  File "./python/run-tests.py", line 159, in main
    python_implementation = subprocess.check_output(
AttributeError: 'module' object has no attribute 'check_output'
...
{noformat}

The cause of this error is using subprocess.check_output function, which exists since Python 2.7.
(ref. https://docs.python.org/2.7/library/subprocess.html#subprocess.check_output)



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