diff --git a/packages/py-pybind11/package.py b/packages/py-pybind11/package.py
new file mode 100644
index 0000000000000000000000000000000000000000..a353ce632ee5a6285bf02e822714e071becf18b2
--- /dev/null
+++ b/packages/py-pybind11/package.py
@@ -0,0 +1,91 @@
+# 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)
+
+import os
+
+from spack import *
+
+
+class PyPybind11(CMakePackage):
+    """pybind11 -- Seamless operability between C++11 and Python.
+
+    pybind11 is a lightweight header-only library that exposes C++ types in
+    Python and vice versa, mainly to create Python bindings of existing C++
+    code. Its goals and syntax are similar to the excellent Boost.Python
+    library by David Abrahams: to minimize boilerplate code in traditional
+    extension modules by inferring type information using compile-time
+    introspection."""
+
+    homepage = "https://pybind11.readthedocs.io"
+    url      = "https://github.com/pybind/pybind11/archive/v2.6.2.tar.gz"
+    git      = "https://github.com/pybind/pybind11.git"
+
+    maintainers = ['ax3l']
+
+    version('master', branch='master')
+    version('2.7.0', sha256='6cd73b3d0bf3daf415b5f9b87ca8817cc2e2b64c275d65f9500250f9fee1677e')
+    version('2.6.2', sha256='8ff2fff22df038f5cd02cea8af56622bc67f5b64534f1b83b9f133b8366acff2')
+    version('2.6.1', sha256='cdbe326d357f18b83d10322ba202d69f11b2f49e2d87ade0dc2be0c5c34f8e2a')
+    version('2.5.0', sha256='97504db65640570f32d3fdf701c25a340c8643037c3b69aec469c10c93dc8504')
+    version('2.4.3', sha256='1eed57bc6863190e35637290f97a20c81cfe4d9090ac0a24f3bbf08f265eb71d')
+    version('2.3.0', sha256='0f34838f2c8024a6765168227ba587b3687729ebf03dc912f88ff75c7aa9cfe8')
+    version('2.2.4', sha256='b69e83658513215b8d1443544d0549b7d231b9f201f6fc787a2b2218b408181e')
+    version('2.2.3', sha256='3a3b7b651afab1c5ba557f4c37d785a522b8030dfc765da26adc2ecd1de940ea')
+    version('2.2.2', sha256='b639a2b2cbf1c467849660801c4665ffc1a4d0a9e153ae1996ed6f21c492064e')
+    version('2.2.1', sha256='f8bd1509578b2a1e7407d52e6ee8afe64268909a1bbda620ca407318598927e7')
+    version('2.2.0', sha256='1b0fda17c650c493f5862902e90f426df6751da8c0b58c05983ab009951ed769')
+    version('2.1.1', sha256='f2c6874f1ea5b4ad4ffffe352413f7d2cd1a49f9050940805c2a082348621540')
+    version('2.1.0', sha256='2860f2b8d0c9f65f0698289a161385f59d099b7ead1bf64e8993c486f2b93ee0')
+
+    depends_on('py-setuptools', type='build')
+    depends_on('py-pytest', type='test')
+
+    extends('python')
+
+    # compiler support
+    conflicts('%gcc@:4.7')
+    conflicts('%clang@:3.2')
+    conflicts('%intel@:16')
+
+    def cmake_args(self):
+        args = []
+        args.append('-DPYTHON_EXECUTABLE:FILEPATH=%s'
+                    % self.spec['python'].command.path)
+        args += [
+            self.define('PYBIND11_TEST', self.run_tests)
+        ]
+        return args
+
+    def setup_build_environment(self, env):
+        env.set('PYBIND11_USE_CMAKE', 1)
+
+    # https://github.com/pybind/pybind11/pull/1995
+    @when('@:2.4.99')
+    def patch(self):
+        """ see https://github.com/spack/spack/issues/13559 """
+        filter_file('import sys',
+                    'import sys; return "{0}"'.format(self.prefix.include),
+                    'pybind11/__init__.py',
+                    string=True)
+
+    def install(self, spec, prefix):
+        super(PyPybind11, self).install(spec, prefix)
+        setup_py('install', '--single-version-externally-managed', '--root=/',
+                 '--prefix={0}'.format(prefix))
+
+    @run_after('install')
+    @on_package_attributes(run_tests=True)
+    def install_test(self):
+        with working_dir('spack-test', create=True):
+            # test include helper points to right location
+            python = self.spec['python'].command
+            py_inc = python(
+                '-c',
+                'import pybind11 as py; ' +
+                self.spec['python'].package.print_string('py.get_include()'),
+                output=str).strip()
+            for inc in [py_inc, self.prefix.include]:
+                inc_file = join_path(inc, 'pybind11', 'pybind11.h')
+                assert os.path.isfile(inc_file)
diff --git a/packages/pynn-brainscales/package.py b/packages/pynn-brainscales/package.py
index 470a2e5a6fd564b7c81c33715571a685448de0b3..4f9c40a283ad05c39ad616933dad77c9e3e360d1 100644
--- a/packages/pynn-brainscales/package.py
+++ b/packages/pynn-brainscales/package.py
@@ -33,7 +33,6 @@ class PynnBrainscales(WafPackage):
         for dep in self.spec.traverse(deptype=('link', 'run')):
             query = self.spec[dep.name]
             try:
-                print("\nQUERY", query)
                 library.extend(query.libs.directories)
                 print(query.libs.directories, "\n")
             except: