[SPARK-18133][EXAMPLES][ML] Python ML Pipeline Example has syntax e…

## What changes were proposed in this pull request?

In Python 3, there is only one integer type (i.e., int), which mostly behaves like the long type in Python 2. Since Python 3 won't accept "L", so removed "L" in all examples.

## How was this patch tested?

Unit tests.

…rrors]

Author: Jagadeesan <as2@us.ibm.com>

Closes #15660 from jagadeesanas2/SPARK-18133.

5 files changed, 15 insertions, 15 deletions

diff --git a/examples/src/main/python/ml/cross_validator.py b/examples/src/main/python/ml/cross_validator.py
index 907eec67a0..db7054307c 100644
--- a/examples/src/main/python/ml/cross_validator.py
+++ b/examples/src/main/python/ml/cross_validator.py
@@ -84,10 +84,10 @@ if __name__ == "__main__":
 
     # Prepare test documents, which are unlabeled.
     test = spark.createDataFrame([
-        (4L, "spark i j k"),
-        (5L, "l m n"),
-        (6L, "mapreduce spark"),
-        (7L, "apache hadoop")
+        (4, "spark i j k"),
+        (5, "l m n"),
+        (6, "mapreduce spark"),
+        (7, "apache hadoop")
     ], ["id", "text"])
 
     # Make predictions on test documents. cvModel uses the best model found (lrModel).
diff --git a/examples/src/main/python/ml/gaussian_mixture_example.py b/examples/src/main/python/ml/gaussian_mixture_example.py
index 8ad450b669..e4a0d314e9 100644
--- a/examples/src/main/python/ml/gaussian_mixture_example.py
+++ b/examples/src/main/python/ml/gaussian_mixture_example.py
@@ -38,7 +38,7 @@ if __name__ == "__main__":
     # loads data
     dataset = spark.read.format("libsvm").load("data/mllib/sample_kmeans_data.txt")
 
-    gmm = GaussianMixture().setK(2).setSeed(538009335L)
+    gmm = GaussianMixture().setK(2).setSeed(538009335)
     model = gmm.fit(dataset)
 
     print("Gaussians shown as a DataFrame: ")
diff --git a/examples/src/main/python/ml/pipeline_example.py b/examples/src/main/python/ml/pipeline_example.py
index f63e4db434..e1fab7cbe6 100644
--- a/examples/src/main/python/ml/pipeline_example.py
+++ b/examples/src/main/python/ml/pipeline_example.py
@@ -35,10 +35,10 @@ if __name__ == "__main__":
     # $example on$
     # Prepare training documents from a list of (id, text, label) tuples.
     training = spark.createDataFrame([
-        (0L, "a b c d e spark", 1.0),
-        (1L, "b d", 0.0),
-        (2L, "spark f g h", 1.0),
-        (3L, "hadoop mapreduce", 0.0)
+        (0, "a b c d e spark", 1.0),
+        (1, "b d", 0.0),
+        (2, "spark f g h", 1.0),
+        (3, "hadoop mapreduce", 0.0)
     ], ["id", "text", "label"])
 
     # Configure an ML pipeline, which consists of three stages: tokenizer, hashingTF, and lr.
@@ -52,10 +52,10 @@ if __name__ == "__main__":
 
     # Prepare test documents, which are unlabeled (id, text) tuples.
     test = spark.createDataFrame([
-        (4L, "spark i j k"),
-        (5L, "l m n"),
-        (6L, "spark hadoop spark"),
-        (7L, "apache hadoop")
+        (4, "spark i j k"),
+        (5, "l m n"),
+        (6, "spark hadoop spark"),
+        (7, "apache hadoop")
     ], ["id", "text"])
 
     # Make predictions on test documents and print columns of interest.
diff --git a/examples/src/main/python/mllib/binary_classification_metrics_example.py b/examples/src/main/python/mllib/binary_classification_metrics_example.py
index daf000e38d..91f8378f29 100644
--- a/examples/src/main/python/mllib/binary_classification_metrics_example.py
+++ b/examples/src/main/python/mllib/binary_classification_metrics_example.py
@@ -39,7 +39,7 @@ if __name__ == "__main__":
         .rdd.map(lambda row: LabeledPoint(row[0], row[1]))
 
     # Split data into training (60%) and test (40%)
-    training, test = data.randomSplit([0.6, 0.4], seed=11L)
+    training, test = data.randomSplit([0.6, 0.4], seed=11)
     training.cache()
 
     # Run training algorithm to build the model
diff --git a/examples/src/main/python/mllib/multi_class_metrics_example.py b/examples/src/main/python/mllib/multi_class_metrics_example.py
index cd56b3c97c..7dc5fb4f91 100644
--- a/examples/src/main/python/mllib/multi_class_metrics_example.py
+++ b/examples/src/main/python/mllib/multi_class_metrics_example.py
@@ -32,7 +32,7 @@ if __name__ == "__main__":
     data = MLUtils.loadLibSVMFile(sc, "data/mllib/sample_multiclass_classification_data.txt")
 
     # Split data into training (60%) and test (40%)
-    training, test = data.randomSplit([0.6, 0.4], seed=11L)
+    training, test = data.randomSplit([0.6, 0.4], seed=11)
     training.cache()
 
     # Run training algorithm to build the model