Bug in stations.csv comment parsing / undocumented stations.csv layout constraints

[EvilRenegade]

The stock stations.csv begins with a comment, rather than a typical CSV column header row.
This sets the expectation that there is a certain amount of formatting freedom, as long as the actual lines are properly formatted.

In reality, the code

if row[0].startswith('#'):
    continue

makes the assumption that there is a row that has been taken apart, erroring out with an unhandled IndexError: list index out of range if the line is empty.

As far as I see, there are three options to mitigate this:

1. Document the expected format for stations.csv and explicitly forbid empty lines.
2. Do EAFP all the way: Wrap the entire thing in a try/catch block and swallow the IndexError.
3. Go LBYL: Turn the condition into if (len(row) > 0) and row[0].startswith('#'):, thus avoiding the leap into darkness.

Personally, I'd opt for 3, but I'm a regular programmer. I'm certain Python fundamentalists would urge you to go for 2.