Add PythonPackage base class

- Add a PythonPackage class with build system support.
  - Support build phases in PythonPackage
  - Add a custom sanity check for PythonPackages
  - Get rid of nolink dependencies in python packages

- Update spack create to use new PythonPackage class

- Port most of Python packages to new PythonPackage class

- Conducted a massive install and activate of Python packages.
  - Fixed bugs introduced by install and activate.

- Update API docs on PythonPackage

1 files changed, 1 insertions, 6 deletions

diff --git a/var/spack/repos/builtin/packages/py-backports-abc/package.py b/var/spack/repos/builtin/packages/py-backports-abc/package.py
index d39cec83c8..7d062bff6a 100644
--- a/var/spack/repos/builtin/packages/py-backports-abc/package.py
+++ b/var/spack/repos/builtin/packages/py-backports-abc/package.py
@@ -25,17 +25,12 @@
 from spack import *
 
 
-class PyBackportsAbc(Package):
+class PyBackportsAbc(PythonPackage):
     """Backports_ABC: A backport of recent additions to the 'collections.abc'
     module."""
     homepage = "https://github.com/cython/backports_abc"
-    # base https://pypi.python.org/pypi/backports_abc/
     url      = "https://github.com/cython/backports_abc/archive/0.4.tar.gz"
 
     version('0.4', 'e4246ae689221c9cbe84369fdb59e8c74d02b298')
 
-    extends('python')
     depends_on('py-setuptools', type='build')
-
-    def install(self, spec, prefix):
-        setup_py('install', '--prefix={0}'.format(prefix))