Ideal directory structure?

[Umang <umang.me@gmail.com>]

Hello everyone,

I've searched the archives of this list but haven't found a post about 
directory structure that I remember reading. So I'm going to ask the 
question again.

What is the best directory structure for a python application?

If I have a package called foo that installs a script called foo and a 
package called foo, this is what I would do:

    foo                            python script
    Foo/                          package
    Foo/__init__.py
    ...

However, this is bad for two reasons:

1. It is against PEP 8:
> Python packages should also have short, all-lowercase names, although the use of underscores is discouraged.
2. This will not work on a case-insensitive filesystem, since Foo and 
foo are the same.

One alternative that I can think of is:

    scripts/foo
    foo/
    foo/__init__.py
    ...

Here I don't understand how I could have the following line in my code:

    from foo include bar

How do you structure your folders?

Thanks

Umang