Building of NimbusML-ExtendedTestsfails on Python 2.7 on Windows

[mstfbl]

Describe the bug
Current master branch of NimbusML is failing to pass extended tests on Python 2.7 on Windows ever since the merging of the pull request #278 .

To Reproduce
Output of this can be viewed here on Azure DevOps Pipeline.

The exact line of error can be seen at line 7378 on CmdLine of Windows Py27, which is as follows:

SyntaxError: Non-ASCII character '\xe2' in file D:\a\1\s\src\python\nimbusml\examples\Schema.py on line 33, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details

The file in question is Schema.py.

The line in question is:

# ['Sentiment', 'SentimentText', 'features.Char.<␂>|=|=', 'features.Char.=|=|r', 'features.Char.=|r|u']

The non-ASCII character in question is:

␂