As usual, it turns out that shortcuts I take during "development" are more trouble than their worth. Leaving off error handling for opening the file, not using the three argument version of open--both things I know perfectly well are best practice.
Still, very educational, thanks again!
In reply to Re^3: Parentheses missing around "my" list
by rastoboy
in thread Parentheses missing around "my" list
by rastoboy
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