My thanks to Ned Deily for his timely response. IDLE is now stable, and I’m at the next step which is to run the file I created called hello.py. I get this message from the shell: Python 3.3.2 (v3.3.2:d047928ae3f6, May 13 2013, 13:52:24) [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin Type "copyright", "credits" or "license()" for more information. >>> hello.py Traceback (most recent call last): File "<pyshell#0>", line 1, in <module> hello.py NameError: name 'hello' is not defined >>> Any assistance would be greatly appreciated.
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