Elizabeth Fischer 208537f6f2 Fix Issues with non-numeric versions, as well as preferred=True (#1561) ... * Fix bug in handling of precedence of preferred=True vs. versions given in packages.yaml (#1556) * Standardized comparison of versions: numeric versions are always greater than non-numeric versions; and non-numeric versions are sorted alphabetically. This is a) simple b) ensures that non-numeric versions (such as 'develop') in package.py are not chosen ahead of numeric versions, when nothing is specified in packages.yaml Fixes Issue #1557 * Removed debugging output * Fix variable shadowing bug * Ensure develop < numeric version. * Bug fix. * Passes all unit tests in versions.py * flake8 fixes * flake8 fixes * Changed type test to be more correct. See http://stackoverflow.com/questions/8203336/difference-between-int-and-numbers-integral-in-python		2016-10-06 02:35:34 -07:00
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spack	Fix Issues with non-numeric versions, as well as preferred=True (#1561)	2016-10-06 02:35:34 -07:00