Github user mateiz commented on the pull request:
https://github.com/apache/spark/pull/1371#issuecomment-48782037
This was already fixed before in another way -- see the code at line 1061
of rdd.py:
```
if partitionFunc is None:
partitionFunc = lambda x: 0 if x is None else hash(x)
```
I much prefer this to replacing the global "hash" function. Just do the
same fix elsewhere if there are places where it's a problem.
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