Github user mateiz commented on a diff in the pull request:
https://github.com/apache/spark/pull/97#discussion_r11193245
--- Diff: python/pyspark/rdd.py ---
@@ -91,6 +92,58 @@ def __exit__(self, type, value, tb):
if _spark_stack_depth == 0:
self._context._jsc.setCallSite(None)
+class MaxHeapQ(object):
+ """
+ An implementation of MaxHeap.
+
+ """
+
+ def __init__(self):
+ # we start from q[1], this makes calculating children as trivial
as 2 * k
+ self.q = [0]
+
+ def _swim(self, k):
+ while (k > 1) and (self.q[k/2] < self.q[k]):
+ self._swap(k, k/2)
+ k = k/2
+
+ def _swap(self, i, j):
+ t = self.q[i]
+ self.q[i] = self.q[j]
+ self.q[j] = t
+
+ def _sink(self, k):
+ N=len(self.q)-1
--- End diff --
Put spaces around the operators (`=`, `-`, etc)
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