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diff --git a/src/python/grpcio/commands.py b/src/python/grpcio/commands.py
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+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Provides distutils command classes for the GRPC Python setup process."""
+
+import os
+import os.path
+import sys
+
+import setuptools
+
+_CONF_PY_ADDENDUM = """
+extensions.append('sphinx.ext.napoleon')
+napoleon_google_docstring = True
+napoleon_numpy_docstring = True
+
+html_theme = 'sphinx_rtd_theme'
+"""
+
+
+class SphinxDocumentation(setuptools.Command):
+  """Command to generate documentation via sphinx."""
+
+  description = ''
+  user_options = []
+
+  def initialize_options(self):
+    pass
+
+  def finalize_options(self):
+    pass
+
+  def run(self):
+    # We import here to ensure that setup.py has had a chance to install the
+    # relevant package eggs first.
+    import sphinx
+    import sphinx.apidoc
+    metadata = self.distribution.metadata
+    src_dir = os.path.join(
+        os.getcwd(), self.distribution.package_dir['grpc'])
+    sys.path.append(src_dir)
+    sphinx.apidoc.main([
+        '', '--force', '--full', '-H', metadata.name, '-A', metadata.author,
+        '-V', metadata.version, '-R', metadata.version,
+        '-o', os.path.join('doc', 'src'), src_dir])
+    conf_filepath = os.path.join('doc', 'src', 'conf.py')
+    with open(conf_filepath, 'a') as conf_file:
+      conf_file.write(_CONF_PY_ADDENDUM)
+    sphinx.main(['', os.path.join('doc', 'src'), os.path.join('doc', 'build')])
+