diff --git a/var/spack/repos/builtin/packages/py-logilab-common/package.py b/var/spack/repos/builtin/packages/py-logilab-common/package.py
index e66cdc8479..b8ca85eb3b 100644
--- a/var/spack/repos/builtin/packages/py-logilab-common/package.py
+++ b/var/spack/repos/builtin/packages/py-logilab-common/package.py
@@ -33,7 +33,7 @@ class PyLogilabCommon(Package):
 
     version('1.2.0', 'f7b51351b7bfe052746fa04c03253c0b')
 
-    extends("python")
+    extends('python', ignore=r'bin/pytest')
     depends_on("py-setuptools", type='build')
     depends_on("py-six", type=nolink)
 
diff --git a/var/spack/repos/builtin/packages/py-pylint/package.py b/var/spack/repos/builtin/packages/py-pylint/package.py
index 10f60f0ab9..8b7c52c740 100644
--- a/var/spack/repos/builtin/packages/py-pylint/package.py
+++ b/var/spack/repos/builtin/packages/py-pylint/package.py
@@ -33,7 +33,10 @@ class PyPylint(Package):
     version('1.4.1', 'df7c679bdcce5019389038847e4de622')
     version('1.4.3', '5924c1c7ca5ca23647812f5971d0ea44')
 
-    extends('python')
+    extends('python', ignore=r'bin/pytest')
+    depends_on('py-six', type=nolink)
+    depends_on('py-astroid', type=nolink)
+    depends_on('py-logilab-common', type=nolink)
     depends_on('py-nose', type='build')
     depends_on('py-setuptools', type='build')
 
diff --git a/var/spack/repos/builtin/packages/py-pyside/package.py b/var/spack/repos/builtin/packages/py-pyside/package.py
index e575864fab..e6c115027e 100644
--- a/var/spack/repos/builtin/packages/py-pyside/package.py
+++ b/var/spack/repos/builtin/packages/py-pyside/package.py
@@ -38,6 +38,7 @@ class PyPyside(Package):
 
     extends('python')
     depends_on('py-setuptools', type='build')
+    depends_on('py-sphinx', type=nolink)
     depends_on('qt@4.5:4.9')
     depends_on('libxml2@2.6.32:')
     depends_on('libxslt@1.1.19:')
diff --git a/var/spack/repos/builtin/packages/py-pytables/package.py b/var/spack/repos/builtin/packages/py-pytables/package.py
index 289d76242b..30d8fab87a 100644
--- a/var/spack/repos/builtin/packages/py-pytables/package.py
+++ b/var/spack/repos/builtin/packages/py-pytables/package.py
@@ -31,6 +31,8 @@ class PyPytables(Package):
     homepage = "http://www.pytables.org/"
     url      = "https://github.com/PyTables/PyTables/archive/v.3.2.2.tar.gz"
 
+    version('3.3.0', '056c161ae0fd2d6e585b766adacf3b0b',
+            url='https://github.com/PyTables/PyTables/archive/v3.3.0.tar.gz')
     version('3.2.2', '7cbb0972e4d6580f629996a5bed92441')
 
     extends('python')
diff --git a/var/spack/repos/builtin/packages/py-rpy2/package.py b/var/spack/repos/builtin/packages/py-rpy2/package.py
index 9db55e949b..ec3ced22f1 100644
--- a/var/spack/repos/builtin/packages/py-rpy2/package.py
+++ b/var/spack/repos/builtin/packages/py-rpy2/package.py
@@ -39,6 +39,7 @@ class PyRpy2(Package):
     version('2.5.6', 'a36e758b633ce6aec6a5f450bfee980f')
 
     extends('python')
+    depends_on('py-six', type=nolink)
     depends_on('py-setuptools', type='build')
 
     depends_on('R')
diff --git a/var/spack/repos/builtin/packages/py-six/package.py b/var/spack/repos/builtin/packages/py-six/package.py
index e7b7177586..6298f39f32 100644
--- a/var/spack/repos/builtin/packages/py-six/package.py
+++ b/var/spack/repos/builtin/packages/py-six/package.py
@@ -34,7 +34,7 @@ class PySix(Package):
     version('1.10.0', '34eed507548117b2ab523ab14b2f8b55')
     version('1.9.0',  '476881ef4012262dfc8adc645ee786c4')
 
-    extends('python')
+    extends('python', ignore=r'bin/pytest')
 
     depends_on('py-setuptools', type='build')
 
diff --git a/var/spack/repos/builtin/packages/python/package.py b/var/spack/repos/builtin/packages/python/package.py
index 9360ecdec0..f9b953a009 100644
--- a/var/spack/repos/builtin/packages/python/package.py
+++ b/var/spack/repos/builtin/packages/python/package.py
@@ -44,6 +44,7 @@ class Python(Package):
     list_url = "https://www.python.org/downloads/"
     list_depth = 2
 
+    version('3.6.0', '3f7062ccf8be76491884d0e47ac8b251')
     version('3.5.2', '3fe8434643a78630c61c6464fe2e7e72')
     version('3.5.1', 'be78e48cdfc1a7ad90efff146dce6cfe')
     version('3.5.0', 'a56c0c0b45d75a0ec9c6dee933c41c36')