@jppelteret

The problem here is that PyPI URLs now contain unwieldy hashes that break Spack's normal way of guessing a URL based on a version number. We need to document best practices on this issue. See Google Groups thread...

https://groups.google.com/forum/#!searchin/spack/Cryptic$20error$20when$20installing$20new$20package%7Csort:relevance/spack/VuMGbwCmZzk/tnxixg-7AAAJ