Thanks, I appreciate the response.
The suggestion to use main, a function, was to provide a namespace that was not package-level to prevent accidental use of "global" variables. In practice I have no idea how useful this is and how often that mistake occurs.
I agree that it seems strange to reference a default and implicit namespace, and in a similar manner, it's particularly verbose to have logic which ensures a script was run and not imported in small programs. I thought to ask this question as a lot of python programs by default include a check that a script was not imported. It may be an antipattern, I'm not exactly sure.
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