There's some differences in style. I take a very aggressive stance on separating my modules; my thought is that it's relatively easy to understand what any give

There's some differences in style. I take a very aggressive stance on separating my modules; my thought is that it's relatively easy to understand what any given module is doing if it is small and focused and clearly pulls in its dependencies. But it's a non-trivial challenge to keep it all so nicely isolated and avoid loops. Worth it, I think, or I wouldn't do it, but non-trivial. There are also a lot of people who pretty much just punt and put everything in one module, so they don't have to deal with circular issues. I'm not sure I see a clear community consensus.