Uploaded image for project: 'Spark'
  1. Spark
  2. SPARK-25397

SparkSession.conf fails when given default value with Python 3

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Incomplete
    • Affects Version/s: 2.3.1
    • Fix Version/s: None
    • Component/s: SQL
    • Labels:

      Description

      Spark 2.3.1 has a Python 3 incompatibility when requesting a Conf value from SparkSession when you give non-string default values. Reproduce via SparkSession call:
      spark.conf.get("myConf", False)

      This gives the error:

      >>> spark.conf.get("myConf", False)
      Traceback (most recent call last):
        File "<stdin>", line 1, in <module>
        File "/Users/josephkb/work/spark-bin/spark-2.3.1-bin-hadoop2.7/python/pyspark/sql/conf.py", line 51, in get
          self._checkType(default, "default")
        File "/Users/josephkb/work/spark-bin/spark-2.3.1-bin-hadoop2.7/python/pyspark/sql/conf.py", line 62, in _checkType
          if not isinstance(obj, str) and not isinstance(obj, unicode):
      *NameError: name 'unicode' is not defined*
      

      The offending line in Spark in branch-2.3 is: https://github.com/apache/spark/blob/branch-2.3/python/pyspark/sql/conf.py which uses the value unicode which is not available in Python 3.

        Attachments

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              josephkb Joseph K. Bradley
            • Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: