GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/13788
[SPARK-16077] [PYSPARK] catch the exception from pickle.whichmodule()
## What changes were proposed in this pull request?
In the case that we don't know which module a object came from, will call
pickle.whichmodule() to go throught all the loaded modules to find the object,
which could fail because some modules, for example, six, see
https://bitbucket.org/gutworth/six/issues/63/importing-six-breaks-pickling
We should ignore the exception here, use '__main__' as the module name (it
means we can't find the module).
## How was this patch tested?
Manual tests. Can't have a unit test for this.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark whichmodule
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13788.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #13788
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commit 0d3df9a627b139d9d8d715f96a4fdd655a31c8b8
Author: Davies Liu <[email protected]>
Date: 2016-06-20T20:53:31Z
catch the exception from pickle.whichmodule()
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