diff --git a/python/pyspark/join.py b/python/pyspark/join.py
index 5f3a7e71f7866..b0f1cc1927066 100644
--- a/python/pyspark/join.py
+++ b/python/pyspark/join.py
@@ -33,10 +33,11 @@
 
 from pyspark.resultiterable import ResultIterable
 
+
 def _do_python_join(rdd, other, numPartitions, dispatch):
     vs = rdd.map(lambda (k, v): (k, (1, v)))
     ws = other.map(lambda (k, v): (k, (2, v)))
-    return vs.union(ws).groupByKey(numPartitions).flatMapValues(lambda x : dispatch(x.__iter__()))
+    return vs.union(ws).groupByKey(numPartitions).flatMapValues(lambda x: dispatch(x.__iter__()))
 
 
 def python_join(rdd, other, numPartitions):
@@ -85,6 +86,7 @@ def make_mapper(i):
     vrdds = [rdd.map(make_mapper(i)) for i, rdd in enumerate(rdds)]
     union_vrdds = reduce(lambda acc, other: acc.union(other), vrdds)
     rdd_len = len(vrdds)
+
     def dispatch(seq):
         bufs = [[] for i in range(rdd_len)]
         for (n, v) in seq: