Massimiliano Culpo b42a96df98 provider index: removed import from + refactored a few parts (#15570) ... Removed provider_index use of 'import from' and refactored a few routines to a further subclassing of _IndexBase for implementing user defined bindings of provider specs.		2020-03-25 09:48:05 -07:00
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spack	provider index: removed import from + refactored a few parts (#15570)	2020-03-25 09:48:05 -07:00