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Posted to commits@spark.apache.org by sr...@apache.org on 2016/01/23 12:36:37 UTC
spark git commit: [SPARK-12760][DOCS] invalid lambda expression in python example for …
Repository: spark
Updated Branches:
refs/heads/master 358a33bbf -> 56f57f894
[SPARK-12760][DOCS] invalid lambda expression in python example for …
…local vs cluster
srowen thanks for the PR at https://github.com/apache/spark/pull/10866! sorry it took me a while.
This is related to https://github.com/apache/spark/pull/10866, basically the assignment in the lambda expression in the python example is actually invalid
```
In [1]: data = [1, 2, 3, 4, 5]
In [2]: counter = 0
In [3]: rdd = sc.parallelize(data)
In [4]: rdd.foreach(lambda x: counter += x)
File "<ipython-input-4-fcb86c182bad>", line 1
rdd.foreach(lambda x: counter += x)
^
SyntaxError: invalid syntax
```
Author: Mortada Mehyar <mo...@gmail.com>
Closes #10867 from mortada/doc_python_fix.
Project: http://git-wip-us.apache.org/repos/asf/spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/56f57f89
Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/56f57f89
Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/56f57f89
Branch: refs/heads/master
Commit: 56f57f894eafeda48ce118eec16ecb88dbd1b9dc
Parents: 358a33b
Author: Mortada Mehyar <mo...@gmail.com>
Authored: Sat Jan 23 11:36:33 2016 +0000
Committer: Sean Owen <so...@cloudera.com>
Committed: Sat Jan 23 11:36:33 2016 +0000
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docs/programming-guide.md | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
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http://git-wip-us.apache.org/repos/asf/spark/blob/56f57f89/docs/programming-guide.md
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diff --git a/docs/programming-guide.md b/docs/programming-guide.md
index bad25e6..4d21d43 100644
--- a/docs/programming-guide.md
+++ b/docs/programming-guide.md
@@ -789,9 +789,12 @@ counter = 0
rdd = sc.parallelize(data)
# Wrong: Don't do this!!
-rdd.foreach(lambda x: counter += x)
+def increment_counter(x):
+ global counter
+ counter += x
+rdd.foreach(increment_counter)
-print("Counter value: " + counter)
+print("Counter value: ", counter)
{% endhighlight %}
</div>
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