weird issue with sqlContext.createDataFrame - pyspark 1.3.1

[ping yan]

I really cannot figure out what this is about..
(tried to import pandas, in case that is a dependency, but it didn't help.)

>>> from pyspark.sql import SQLContext
>>> sqlContext=SQLContext(sc)
>>> sqlContext.createDataFrame(l).collect()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File
"/opt/cloudera/parcels/CDH-5.4.2-1.cdh5.4.2.p0.2/lib/spark/python/pyspark/sql/context.py",
line 318, in createDataFrame
    if has_pandas and isinstance(data, pandas.DataFrame):
AttributeError: 'module' object has no attribute 'DataFrame'

Would appreciate any pointers.

Thanks!
Ping