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Package Relative Imports
The coverage of package imports so far has focused mostly on importing package files from outside the package. Within the package itself, imports of package files can use the same path syntax as outside imports, but they can also make use of special intra-package search rules to simplify import statements. That is, rather than listing package import paths, imports within the package can be relative to the package.
The way this works is version-dependent today: Python 2.6 implicitly searches package directories first on imports, while 3.0 requires explicit relative import syntax. This 3.0 change can enhance code readability, by making same-package imports more obvious. If you’re starting out in Python with version 3.0, your focus in this section will likely be on its new import syntax. If you’ve used other Python packages in the past, though, you’ll probably also be interested in how the 3.0 model differs.
