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From: Chris Angelico <rosuav@gmail.com>
Newsgroups: comp.lang.python
Subject: Re: Howw to prevent the duplication of any value in a column within a CSV file (python)
Date: Wed, 27 Apr 2016 16:37:27 +1000
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On Wed, Apr 27, 2016 at 4:26 PM, Adam Davis <peakgraphicz@gmail.com> wrote:
> I understand what you're saying! But where you say: " the_set = set()", what would go within the set brackets?

Nothing. The empty parentheses mean "call this with no arguments", and
when you call the set constructor like that, you get back an empty
set.

ChrisA