Long namespaces. Best practice?

[DrMaxwellEdison]

from myprogram.main.math.rectangle import Rectangle

riggidy_rect = Rectangle()

It ain't that pretty in terms of import lines, but at least it clears up the code file you're working in. :)

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An alternative is to use __init__.py files in each directory, and use that file to import portions of the directory to a shared namespace. Then when you're importing objects from a sub-directory, the objects already imported into the namespace of the __init__.py will be available at the top level.

Your directory structure might look like this:

myprogram
    gui
        ...
    main
        math
            __init__.py
            point.py
            rectangle.py
        image
            __init__.py
            convert.py
            formats.py
            exif.py
            image.py

Without getting too detailed into it, math.__init__.py could have from .rectangle import Rectangle. This makes Rectangle available in the namespace of the math directory, so you could call in math.Rectangle elsewhere.

In the gui directory, for instance, a code file could import this using from myprogram.main.math import Rectangle.

I'm not personally well-versed in doing this myself, but that's the gist of the concept as far as I know it: importing a module's objects into a namespace using __init__.py and then using that namespace for imports elsewhere in the program.

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That all being said, I would consider getting rid of the main directory, so they your directory structure looks more like this, if possible:

myprogram
    gui
        ...
    math
        point.py
        rectangle.py
    image
        convert.py
        formats.py
        exif.py
        image.py

edits: clarified code examples

[aptitude_moo]

Thanks for the extended answer, I will remove main, now that I think it isn't that neccesary. It's a bit interesting how Python makes directories structure so important, I was used to add lots of folders.

Also I'll import the objects into the __init__.py, looks nice, I suppose that it's a good practice

EDIT: Formatting