From 74e93252763a281daeab3e859180f536beb9de66 Mon Sep 17 00:00:00 2001
From: Anirudh <animenon@mail.com>
Date: Thu, 2 Nov 2017 01:12:33 +0530
Subject: [PATCH 1/3] Added documentation

---
 examples/src/main/python/pi.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/examples/src/main/python/pi.py b/examples/src/main/python/pi.py
index 5839cc2874956..94a55d2ce692d 100755
--- a/examples/src/main/python/pi.py
+++ b/examples/src/main/python/pi.py
@@ -27,12 +27,16 @@
 if __name__ == "__main__":
     """
         Usage: pi [partitions]
+        
+        Monte Carlo method is used to estimate Pi in the below example.
     """
     spark = SparkSession\
         .builder\
         .appName("PythonPi")\
         .getOrCreate()
-
+    
+    # If no arguments are passed(i.e. `len(sys.argv) < = 1` ) 
+    # while calling this script, the default value assigned is 2
     partitions = int(sys.argv[1]) if len(sys.argv) > 1 else 2
     n = 100000 * partitions
 

From d840c08bfe5d02424c587da8df3f27c4ed4a9a03 Mon Sep 17 00:00:00 2001
From: Anirudh <animenon@mail.com>
Date: Thu, 2 Nov 2017 23:59:46 +0530
Subject: [PATCH 2/3] Update pi.py

PEP8
---
 examples/src/main/python/pi.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/examples/src/main/python/pi.py b/examples/src/main/python/pi.py
index 94a55d2ce692d..0c9aedd52209c 100755
--- a/examples/src/main/python/pi.py
+++ b/examples/src/main/python/pi.py
@@ -27,15 +27,15 @@
 if __name__ == "__main__":
     """
         Usage: pi [partitions]
-        
+
         Monte Carlo method is used to estimate Pi in the below example.
     """
     spark = SparkSession\
         .builder\
         .appName("PythonPi")\
         .getOrCreate()
-    
-    # If no arguments are passed(i.e. `len(sys.argv) < = 1` ) 
+
+    # If no arguments are passed(i.e. `len(sys.argv) < = 1` )
     # while calling this script, the default value assigned is 2
     partitions = int(sys.argv[1]) if len(sys.argv) > 1 else 2
     n = 100000 * partitions

From 173fd29f20eab1ca8384413548deb5aac509d629 Mon Sep 17 00:00:00 2001
From: Anirudh <animenon@mail.com>
Date: Fri, 3 Nov 2017 00:17:41 +0530
Subject: [PATCH 3/3] Update index.md

Description added for SparkPi example
---
 docs/index.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/docs/index.md b/docs/index.md
index b867c972b4b48..de1429cd2ac19 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -44,6 +44,9 @@ launching applications). For example,
 
     ./bin/run-example SparkPi 10
 
+The above example runs the Monte Carlo method to estimate the value of Pi. The arguement passed
+(i.e. 10 in this case) is the number of partitions in the RDD.
+
 You can also run Spark interactively through a modified version of the Scala shell. This is a
 great way to learn the framework.