Fix pynn brainscales

• PYTHONPATH was still wrong for pynn-brainscales (manually helped in testing :))
• PyNN 0.9.1 is somewhat too old for pynn-brainscales → adding version 0.9.5 to EBRAINS

packages/py-pynn/package.py

+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class PyPynn(PythonPackage):
+    """A Python package for simulator-independent specification of neuronal
+        network models
+    """
+
+    homepage = "http://neuralensemble.org/PyNN/"
+    pypi = "PyNN/PyNN-0.8.3.tar.gz"
+    git      = "https://github.com/NeuralEnsemble/PyNN.git"
+
+    version('0.9.5', sha256='91af2126b639a6a795bfc2709ac49423278c4794b6d0da143908b9afcb415f80')
+    version('0.9.1', sha256='bbc60fea3235427191feb2daa0e2fa07eb1c3946104c068ac8a2a0501263b0b1')
+    version('0.8.3', sha256='9d59e6cffa4714f0c892ec6b32d1f5f8f75ba3a20d8635bac50c047aa6f2537e')
+    version('0.8beta', commit='ffb0cb1661f2b0f2778db8f71865978fe7a7a6a4')
+    version('0.8.1', sha256='ce94246284588414d1570c1d5d697805f781384e771816727c830b01ee30fe39')
+    version('0.7.5', sha256='15f75f422f3b71c6129ecef23f29d8baeb3ed6502e7a321b8a2596c78ef7e03c')
+
+    depends_on('python@2.6:2.8,3.3:')
+    depends_on('py-jinja2@2.7:',        type=('build', 'run'))
+    depends_on('py-docutils@0.10:',     type=('build', 'run'))
+    depends_on('py-numpy@1.5:',         type=('build', 'run'))
+    depends_on('py-quantities@0.10:',   type=('build', 'run'))
+    depends_on('py-lazyarray@0.2.9:',   type=('build', 'run'))
+
+    depends_on('py-neo@0.3:0.4.1',      type=('build', 'run'), when="@:0.8.3")
+    depends_on('py-neo@0.5.0:',         type=('build', 'run'), when="@0.9.0:")
+    depends_on('py-lazyarray',          type=('build', 'run'), when="@0.9.0:")
+
+    depends_on('py-mock@1.0:', type='test')