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[SPARK-7509][SQL] DataFrame.drop in Python for dropping columns. #6068

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[SPARK-7509][SQL] DataFrame.drop in Python for dropping columns. #6068

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14 changes: 13 additions & 1 deletion python/pyspark/sql/dataframe.py
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Original file line number Diff line number Diff line change
Expand Up @@ -986,7 +986,7 @@ def withColumn(self, colName, col):

@ignore_unicode_prefix
def withColumnRenamed(self, existing, new):
"""REturns a new :class:`DataFrame` by renaming an existing column.
"""Returns a new :class:`DataFrame` by renaming an existing column.

:param existing: string, name of the existing column to rename.
:param col: string, new name of the column.
Expand All @@ -999,6 +999,18 @@ def withColumnRenamed(self, existing, new):
for c in self.columns]
return self.select(*cols)

@ignore_unicode_prefix
def drop(self, colName):
"""Returns a new :class:`DataFrame` that drops the specified column.

:param colName: string, name of the column to drop.

>>> df.drop('age').collect()
[Row(name=u'Alice'), Row(name=u'Bob')]
"""
jdf = self._jdf.drop(colName)
return DataFrame(jdf, self.sql_ctx)

def toPandas(self):
"""Returns the contents of this :class:`DataFrame` as Pandas ``pandas.DataFrame``.

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