Fix PEP8 violations in examples/src/main/python.

Author: Reynold Xin <rxin@apache.org>

Closes #870 from rxin/examples-python-pep8 and squashes the following commits:

2829e84 [Reynold Xin] Fix PEP8 violations in examples/src/main/python.

1 files changed, 2 insertions, 0 deletions

diff --git a/examples/src/main/python/pi.py b/examples/src/main/python/pi.py
index 234720b55f..21d94a2cd4 100755
--- a/examples/src/main/python/pi.py
+++ b/examples/src/main/python/pi.py
@@ -29,9 +29,11 @@ if __name__ == "__main__":
     sc = SparkContext(appName="PythonPi")
     slices = int(sys.argv[1]) if len(sys.argv) > 1 else 2
     n = 100000 * slices
+
     def f(_):
         x = random() * 2 - 1
         y = random() * 2 - 1
         return 1 if x ** 2 + y ** 2 < 1 else 0
+
     count = sc.parallelize(xrange(1, n+1), slices).map(f).reduce(add)
     print "Pi is roughly %f" % (4.0 * count / n)