[GitHub] spark pull request: [MINOR][DOC] Fix wrong type in python examples

[zhengruifeng <gi...@git.apache.org>]

Github user zhengruifeng commented on the pull request:

    https://github.com/apache/spark/pull/12868#issuecomment-216840819
  
    @srowen @HyukjinKwon Python do not have `long` type.
    ```
      File "/Users/zrf/Development/OpenSource/spark/examples/src/main/python/ml/als_example.py", line 37, in <lambda>
        rating=float(p[2]), timestamp=long(p[3])))
    NameError: name 'long' is not defined
    ```


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