Massimiliano Culpo 985e101507 Import hooks using Python's built-in machinery (#23288) ... The function we coded in Spack to load Python modules with arbitrary names from a file seem to have issues with local imports. For loading hooks though it is unnecessary to use such functions, since we don't care to bind a custom name to a module nor we have to load it from an unknown location. This PR thus modifies spack.hook in the following ways: - Use __import__ instead of spack.util.imp.load_source (this addresses #20005) - Sync module docstring with all the hooks we have - Avoid using memoization in a module function - Marked with a leading underscore all the names that are supposed to stay local		2021-04-27 16:55:07 -07:00
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spack	Import hooks using Python's built-in machinery (#23288)	2021-04-27 16:55:07 -07:00