"Evaluate When Packaging" and "Evaluate When Installing"

[hunterhogan]

I strongly prefer dynamic values and dynamic handling of values. Nevertheless, some values should be static and universal. In my opinion, all of the values marked with "Evaluate When Packaging" and "Evaluate When Installing" should be 1) static and 2) easily accessible by any part of the package.

The two archetypical examples of Python values that are not easy to discover from within a package are the name of the package and the root directory of the package (relative or absolute).

I feel some values should be fixed when I, the developer, "package" the Python code and send it to PyPI. I believe a few more values should (usually) be fixed when the user installs the package.

The metadata markers metadata={'evaluateWhen': '...'} signal values that I believe should be static.

[hunterhogan]

The class [PackageSettings](https://github.com/hunterhogan/hunterMakesPy/blob/c08c94c72450194171ad1b9a140a9730243a3f4c/hunterMakesPy/coping.py) attempts to make it easy for a Python statement to discover the identifier of the package to which it belongs (identifierPackage) and the canonical physical filesystem path to the root of the package (pathPackage). It is very useful to me, and I reflexively add it to all of my packages.

Nevertheless, it is an incomplete solution, it does not "evaluate" during packaging or installation, and I am still dissatisfied with the entire situation.

I would like to find a solution or make a solution.