Added "# -- coding: utf-8 --" to preserve the character ␂ while guaranteeing successful builds with Python 2.7

src/python/nimbusml/examples/Schema.py

@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 ###############################################################################
 # Get schema from a fitted pipeline example.
 import numpy as np
@@ -30,4 +31,4 @@
 schema = pipe.get_output_columns()
 
 print(schema[0:5])
-# ['Sentiment', 'SentimentText', 'features.Char.<?>|=|=', 'features.Char.=|=|r', 'features.Char.=|r|u']
+# ['Sentiment', 'SentimentText', 'features.Char.<␂>|=|=', 'features.Char.=|=|r', 'features.Char.=|r|u']

src/python/nimbusml/examples/examples_from_dataframe/NGramExtractor_df.py

@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 ###############################################################################
 # Example with NGramExtractor and LogisticRegressionBinaryClassifier
 import pandas