Change the usage of "is" to "==" to comply with the new syntax warnings found in python >= 3.8
Observed warnings:
RunFinger.py:61: SyntaxWarning: "is" with a literal. Did you mean "=="?
if PY2OR3 is "PY2":
RunFinger.py:68: SyntaxWarning: "is" with a literal. Did you mean "=="?
if PY2OR3 is "PY2":
RunFinger.py:74: SyntaxWarning: "is" with a literal. Did you mean "=="?
if PY2OR3 is "PY2":