feat(py-pynn): add version 0.12.3

packages/py-pynn/package.py

@@ -17,6 +17,7 @@ class PyPynn(PythonPackage):
 
     maintainers = ["apdavison"]
 
+    version('0.12.3', sha256='e196f9055c46fe5c0e23f491815d16dca8db9be599a226ee11fa67605cab153d')
     version('0.12.2', sha256='8039b68e3e5f98b537038c249dc42c027bd63f9ecc015c82f1f88bd30dfa28a9')
     version('0.12.1', sha256='fef49cc601032565341f02c5c982cb805bc0cc16de75166acb1b7f8c179adfda')
     version('0.11.0', sha256='eab6ef281e0a00180c8b31ffb65984f54216c68464db363a5c09832fec91f952')
@@ -62,7 +63,8 @@ class PyPynn(PythonPackage):
     depends_on('nest@3.3:3.4+python',   type=('run', 'test'), when="@0.10.1:0.11.0")
     depends_on('nest@3.4:+python',      type=('run', 'test'), when="@0.12.1:")
     depends_on('py-brian2',             type=('run', 'test'))
-    depends_on('arbor@0.8.1:+python',   type=('run', 'test'), when="@0.12.1:")
+    depends_on('arbor@0.8.1:+python',   type=('run', 'test'), when="@0.12.1:0.12.2")
+    depends_on('arbor@0.9.0:+python',   type=('run', 'test'), when="@0.12.3:")
 
 
     depends_on('py-mock@1.0:',          type='test')