Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/5694#issuecomment-110815502
Any idea what's up with this Python style check failure?
```
========================================================================
Running Python style checks
========================================================================
Python lint checks failed.
*** Error compiling './examples/src/main/python/kmeans.py'...
File "./examples/src/main/python/kmeans.py", line 71
lambda (p1, c1), (p2, c2): (p1 + p2, c1 + c2))
^
SyntaxError: invalid syntax
[error] running ['./dev/lint-python'] ; received return code 1
```
Could `dev/lint-python` be using a different Python version in a way that's
breaking things? That looks like a Python-3-like error, since I think Python 3
dropped support for tuple unpacking in lambdas, so are we maybe using Python 3
to run `lint-python` as of this patch?
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