title: column object not callable spark
body: <p>I tried to install spark and run the commands given in the tutorial but get the following error - </p>
  
  <p><a href="https://spark.apache.org/docs/latest/quick-start.html" rel="nofollow noreferrer">https://spark.apache.org/docs/latest/quick-start.html</a></p>
  
  <pre><code>P-MBP:spark-2.0.2-bin-hadoop2.4 prem$ ./bin/pyspark 
  Python 2.7.13 (default, Apr  4 2017, 08:44:49) 
  [GCC 4.2.1 Compatible Apple LLVM 7.0.2 (clang-700.1.81)] on darwin
  Type "help", "copyright", "credits" or "license" for more information.
  Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
  Setting default log level to "WARN".
  To adjust logging level use sc.setLogLevel(newLevel).
  17/09/12 17:26:53 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
  Welcome to
        ____              __
       / __/__  ___ _____/ /__
      _\ \/ _ \/ _ `/ __/  '_/
     /__ / .__/\_,_/_/ /_/\_\   version 2.0.2
        /_/
  
  Using Python version 2.7.13 (default, Apr  4 2017 08:44:49)
  SparkSession available as 'spark'.
  &gt;&gt;&gt; textFile = spark.read.text("README.md")
  &gt;&gt;&gt; textFile.count()
  99
  &gt;&gt;&gt; textFile.first()
  Row(value=u'# Apache Spark')
  &gt;&gt;&gt; linesWithSpark = textFile.filter(textFile.value.contains("Spark"))
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  TypeError: 'Column' object is not callable
  
  
  &gt;&gt;&gt; dir(textFile.value)
  ['__add__', '__and__', '__bool__', '__class__', '__contains__', '__delattr__', '__dict__', '__div__', '__doc__', '__eq__', '__format__', '__ge__', '__getattr__', '__getattribute__', '__getitem__', '__getslice__', '__gt__', '__hash__', '__init__', '__invert__', '__iter__', '__le__', '__lt__', '__mod__', '__module__', '__mul__', '__ne__', '__neg__', '__new__', '__nonzero__', '__or__', '__pow__', '__radd__', '__rand__', '__rdiv__', '__reduce__', '__reduce_ex__', '__repr__', '__rmod__', '__rmul__', '__ror__', '__rpow__', '__rsub__', '__rtruediv__', '__setattr__', '__sizeof__', '__str__', '__sub__', '__subclasshook__', '__truediv__', '__weakref__', '_jc', 'alias', 'asc', 'astype', 'between', 'bitwiseAND', 'bitwiseOR', 'bitwiseXOR', 'cast', 'desc', 'endswith', 'getField', 'getItem', 'isNotNull', 'isNull', 'isin', 'like', 'name', 'otherwise', 'over', 'rlike', 'startswith', 'substr', 'when']
  </code></pre>