spack/var
George Hartzell 7a6c7f23a0 py-matplotlib only needs backports when ^python@:2 (#13712)
* py-matplotlib only needs backports when ^python@:2

This implements @scheibelp's suggestion in #13711.

py-matplotlib should only depends_on py-backports-functools-lru-cache
when it's using a python that actually *needs* it.

See #13711 for details.

* Don't depend_ons py-enum34 unless python@:3.3

* Tighten up enum34 dependency

@adamjstewart cracked open the setup.py files and suggested a tighter
dependency for py-enum34.  1.4 and 1.5 only require it for pythons
before 3.4, 1.3 requires it unconditionally.  So...., we'll do the
same.

* Remove conflict on python 3.4 from enum34

at @adamjstewart's request see PR notes
2019-11-14 16:26:44 -06:00
..
spack py-matplotlib only needs backports when ^python@:2 (#13712) 2019-11-14 16:26:44 -06:00