See: #9335
Spack's python package prefers installing version 2.7.15, this takes precedence even when a dependent package requires a later version via the depends_on, namely py-matplotlib.
The proposal is that version(..., preferred=True) should be overridden when a dependent package specifies a later version with depends_on.
See: #9335
Spack's python package prefers installing version
2.7.15, this takes precedence even when a dependent package requires a later version via thedepends_on, namelypy-matplotlib.The proposal is that
version(..., preferred=True)should be overridden when a dependent package specifies a later version withdepends_on.