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What? There's no proscription against either of those. However a little common sense would go a long way in your first example. Break at spaces/hyphens/other natural break points in strings. Also the + symbols aren't necessary. String continuation is implicit inside parentheses.

Either is acceptable per PEP 8.

Oh, neat! I don't have to feel dirty now.

I always stick to 79 chars and stick to the latter method for indentation. I am completely happy with the readability of my code as a result. Thus, I'm not really happy with the new 99 char rule.

I don't think of it as a new limit at 99 chars, meaning you should switch, but that the 79 limit isn't a hard limit, just a guideline.

If you have a line that would suffer under 79 chars, let it go a little long, but no farther than 99.