I believe I may have found the cause of the problem.
One of my Python reference books made the following statement:
"The locale must be installed on the OS, otherwise setlocale raises a locale Error: unsupported locale setting exception."
From: Ramalho, Luciano. Fluent Python: Clear, Concise, and Effective Programming (p. 130). O'Reilly Media. Kindle Edition.
So I'm hypothesizing that the locale must not be installed in LE version 9.1.002.
chewitt, If my hypothesis is correct, is there anything I can do to fix the problem short of recompiling?