addressing coding style rules

var/spack/repos/builtin/packages/py-Genshi/package.py

@@ -1,4 +1,6 @@
-from spack import *
+from spack import version, extends, depends_on, python
+from spack import Package
+
 
 class PyGenshi(Package):
     """Python toolkit for generation of output for the web"""

var/spack/repos/builtin/packages/py-astroid/package.py

@@ -1,4 +1,6 @@
-from spack import *
+from spack import depends_on, extends, python, version
+from spack import Package
+
 
 class PyAstroid(Package):
     homepage = "https://www.astroid.org/"

var/spack/repos/builtin/packages/py-jinja2/package.py

@@ -1,4 +1,6 @@
-from spack import *
+from spack import depends_on, extends, python, version
+from spack import Package
+
 
 class PyJinja2(Package):
     """

var/spack/repos/builtin/packages/py-logilab-common/package.py

@@ -1,4 +1,6 @@
-from spack import *
+from spack import depends_on, extends, python, version
+from spack import Package
+
 
 class PyLogilabCommon(Package):
     """Common modules used by Logilab projects"""

var/spack/repos/builtin/packages/py-markupsafe/package.py

@@ -1,4 +1,6 @@
-from spack import *
+from spack import depends_on, extends, python, version
+from spack import Package
+
 
 class PyMarkupsafe(Package):
     """

var/spack/repos/builtin/packages/py-mistune/package.py

@@ -1,4 +1,6 @@
-from spack import *
+from spack import depends_on, extends, python, version
+from spack import Package
+
 
 class PyMistune(Package):
     """

var/spack/repos/builtin/packages/py-prettytable/package.py

@@ -1,4 +1,6 @@
-from spack import *
+from spack import depends_on, extends, python, version
+from Spack import Package
+
 
 class PyPrettytable(Package):
     """

var/spack/repos/builtin/packages/py-py2neo/package.py

@@ -1,4 +1,6 @@
-from spack import *
+from spack import depends_on, extends, python, version
+from spack import Package
+
 
 class PyPy2neo(Package):
     """FIXME: put a proper description of your package here."""

var/spack/repos/builtin/packages/py-storm/package.py

@@ -1,4 +1,6 @@
-from spack import *
+from spack import depends_on, extends, python, version
+from spack import Package
+
 
 class PyStorm(Package):
     """Storm is an object-relational mapper (ORM) for Python"""
@@ -12,4 +14,3 @@ class PyStorm(Package):
 
     def install(self, spec, prefix):
         python('setup.py', 'install', '--prefix=%s' % prefix)
-