python route guide - just the code

9 files changed, 1401 insertions, 0 deletions

diff --git a/python/route_guide/.gitignore b/python/route_guide/.gitignore
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index 0000000000..0d20b6487c
--- /dev/null
+++ b/python/route_guide/.gitignore
@@ -0,0 +1 @@
+*.pyc
diff --git a/python/route_guide/route_guide.proto b/python/route_guide/route_guide.proto
new file mode 100644
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--- /dev/null
+++ b/python/route_guide/route_guide.proto
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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.
+
+syntax = "proto2";
+
+//TODO: see https://github.com/grpc/grpc/issues/814
+//package examples;
+
+// Interface exported by the server.
+service RouteGuide {
+  // A simple RPC.
+  //
+  // Obtains the feature at a given position.
+  rpc GetFeature(Point) returns (Feature) {}
+
+  // A server-to-client streaming RPC.
+  //
+  // Obtains the Features available within the given Rectangle.  Results are
+  // streamed rather than returned at once (e.g. in a response message with a
+  // repeated field), as the rectangle may cover a large area and contain a
+  // huge number of features.
+  rpc ListFeatures(Rectangle) returns (stream Feature) {}
+
+  // A client-to-server streaming RPC.
+  //
+  // Accepts a stream of Points on a route being traversed, returning a
+  // RouteSummary when traversal is completed.
+  rpc RecordRoute(stream Point) returns (RouteSummary) {}
+
+  // A Bidirectional streaming RPC.
+  //
+  // Accepts a stream of RouteNotes sent while a route is being traversed,
+  // while receiving other RouteNotes (e.g. from other users).
+  rpc RouteChat(stream RouteNote) returns (stream RouteNote) {}
+}
+
+// Points are represented as latitude-longitude pairs in the E7 representation
+// (degrees multiplied by 10**7 and rounded to the nearest integer).
+// Latitudes should be in the range +/- 90 degrees and longitude should be in
+// the range +/- 180 degrees (inclusive).
+message Point {
+  optional int32 latitude = 1;
+  optional int32 longitude = 2;
+}
+
+// A latitude-longitude rectangle, represented as two diagonally opposite
+// points "lo" and "hi".
+message Rectangle {
+  // One corner of the rectangle.
+  optional Point lo = 1;
+
+  // The other corner of the rectangle.
+  optional Point hi = 2;
+}
+
+// A feature names something at a given point.
+//
+// If a feature could not be named, the name is empty.
+message Feature {
+  // The name of the feature.
+  optional string name = 1;
+
+  // The point where the feature is detected.
+  optional Point location = 2;
+}
+
+// A RouteNote is a message sent while at a given point.
+message RouteNote {
+  // The location from which the message is sent.
+  optional Point location = 1;
+
+  // The message to be sent.
+  optional string message = 2;
+}
+
+// A RouteSummary is received in response to a RecordRoute rpc.
+//
+// It contains the number of individual points received, the number of
+// detected features, and the total distance covered as the cumulative sum of
+// the distance between each point.
+message RouteSummary {
+  // The number of points received.
+  optional int32 point_count = 1;
+
+  // The number of known features passed while traversing the route.
+  optional int32 feature_count = 2;
+
+  // The distance covered in metres.
+  optional int32 distance = 3;
+
+  // The duration of the traversal in seconds.
+  optional int32 elapsed_time = 4;
+}
diff --git a/python/route_guide/route_guide_client.py b/python/route_guide/route_guide_client.py
new file mode 100755
index 0000000000..cdb453bb0f
--- /dev/null
+++ b/python/route_guide/route_guide_client.py
@@ -0,0 +1,143 @@
+# 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.
+
+"""The Python implementation of the gRPC route guide client."""
+
+import route_guide_pb2
+
+import json
+import random
+import time
+
+_TIMEOUT_SECONDS = 30
+
+
+def read_route_guide_db():
+  """Reads the route guide"""
+  feature_list = []
+  with open("route_guide_db.json") as route_guide_db_file:
+    for item in json.load(route_guide_db_file):
+      feature = route_guide_pb2.Feature(name=item["name"])
+      feature.location.longitude = item["location"]["longitude"]
+      feature.location.latitude = item["location"]["latitude"]
+      feature_list.append(feature)
+  return feature_list
+
+
+def make_route_note(message, latitude, longitude):
+  route_note = route_guide_pb2.RouteNote(message=message)
+  route_note.location.latitude = latitude
+  route_note.location.longitude = longitude
+  return route_note
+
+
+def guide_get_one_feature(stub, point):
+  feature = stub.GetFeature(point, _TIMEOUT_SECONDS)
+  if not feature.location:
+    print "Server returned incomplete feature"
+    return
+
+  if feature.name:
+    print "Feature called %s at %s" % (feature.name, feature.location)
+  else:
+    print "Found no feature at %s" % feature.location
+
+
+def guide_get_feature(stub):
+  guide_get_one_feature(stub, route_guide_pb2.Point(latitude=409146138, longitude=-746188906))
+  guide_get_one_feature(stub, route_guide_pb2.Point(latitude=0, longitude=0))
+
+
+def guide_list_features(stub):
+  rect = route_guide_pb2.Rectangle()
+  rect.lo.latitude = 400000000
+  rect.lo.longitude = -750000000
+  rect.hi.latitude = 420000000
+  rect.hi.longitude = -730000000
+  print "Looking for features between 40, -75 and 42, -73"
+
+  features = stub.ListFeatures(rect, _TIMEOUT_SECONDS)
+
+  for feature in features:
+    print "Feature called %s at %s" % (feature.name, feature.location)
+
+
+def generate_route(feature_list):
+  for index in range(0, 10):
+    random_feature = feature_list[random.randint(0, len(feature_list) - 1)]
+    print "Visiting point %s" % random_feature.location
+    yield random_feature.location
+    time.sleep(random.uniform(0.5, 1.5))
+
+
+def guide_record_route(stub):
+  feature_list = read_route_guide_db()
+
+  route_iter = generate_route(feature_list)
+  route_summary = stub.RecordRoute(route_iter, _TIMEOUT_SECONDS)
+  print "Finished trip with %s points " % route_summary.point_count
+  print "Passed %s features " % route_summary.feature_count
+  print "Travelled %s meters " % route_summary.distance
+  print "It took %s seconds " % route_summary.elapsed_time
+
+
+def generate_messages():
+  messages = [
+              make_route_note("First message", 0, 0),
+              make_route_note("Second message", 0, 1),
+              make_route_note("Third message", 1, 0),
+              make_route_note("Fourth message", 0, 0),
+              make_route_note("Fifth message", 1, 0),
+  ]
+  for msg in messages:
+    print "Sending %s at %s" % (msg.message, msg.location)
+    yield msg
+    time.sleep(random.uniform(0.5, 1.0))
+
+
+def guide_route_chat(stub):
+  responses = stub.RouteChat(generate_messages(), _TIMEOUT_SECONDS)
+  for response in responses:
+    print "Received message %s at %s" % (response.message, response.location)
+
+
+def run():
+  with route_guide_pb2.early_adopter_create_RouteGuide_stub('localhost', 50051) as stub:
+    print "-------------- GetFeature --------------"
+    guide_get_feature(stub);
+    print "-------------- ListFeatures --------------"
+    guide_list_features(stub);
+    print "-------------- RecordRoute --------------"
+    guide_record_route(stub);
+    print "-------------- RouteChat --------------"
+    guide_route_chat(stub);
+
+
+if __name__ == '__main__':
+  run()
diff --git a/python/route_guide/route_guide_db.json b/python/route_guide/route_guide_db.json
new file mode 100644
index 0000000000..9d6a980ab7
--- /dev/null
+++ b/python/route_guide/route_guide_db.json
@@ -0,0 +1,601 @@
+[{
+    "location": {
+        "latitude": 407838351,
+        "longitude": -746143763
+    },
+    "name": "Patriots Path, Mendham, NJ 07945, USA"
+}, {
+    "location": {
+        "latitude": 408122808,
+        "longitude": -743999179
+    },
+    "name": "101 New Jersey 10, Whippany, NJ 07981, USA"
+}, {
+    "location": {
+        "latitude": 413628156,
+        "longitude": -749015468
+    },
+    "name": "U.S. 6, Shohola, PA 18458, USA"
+}, {
+    "location": {
+        "latitude": 419999544,
+        "longitude": -740371136
+    },
+    "name": "5 Conners Road, Kingston, NY 12401, USA"
+}, {
+    "location": {
+        "latitude": 414008389,
+        "longitude": -743951297
+    },
+    "name": "Mid Hudson Psychiatric Center, New Hampton, NY 10958, USA"
+}, {
+    "location": {
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+        "longitude": -746524769
+    },
+    "name": "287 Flugertown Road, Livingston Manor, NY 12758, USA"
+}, {
+    "location": {
+        "latitude": 406109563,
+        "longitude": -742186778
+    },
+    "name": "4001 Tremley Point Road, Linden, NJ 07036, USA"
+}, {
+    "location": {
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+    },
+    "name": "352 South Mountain Road, Wallkill, NY 12589, USA"
+}, {
+    "location": {
+        "latitude": 412950425,
+        "longitude": -741077389
+    },
+    "name": "Bailey Turn Road, Harriman, NY 10926, USA"
+}, {
+    "location": {
+        "latitude": 412144655,
+        "longitude": -743949739
+    },
+    "name": "193-199 Wawayanda Road, Hewitt, NJ 07421, USA"
+}, {
+    "location": {
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+    "name": "406-496 Ward Avenue, Pine Bush, NY 12566, USA"
+}, {
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+    },
+    "name": "162 Merrill Road, Highland Mills, NY 10930, USA"
+}, {
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+    "name": "Clinton Road, West Milford, NJ 07480, USA"
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+    "name": "16 Old Brook Lane, Warwick, NY 10990, USA"
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+        "longitude": -740294537
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+    "name": "349 Sea Spray Court, Neptune City, NJ 07753, USA"
+}, {
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+    "name": "13-17 Stanley Street, West Milford, NJ 07480, USA"
+}, {
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+        "longitude": -740726046
+    },
+    "name": "47 Industrial Avenue, Teterboro, NJ 07608, USA"
+}, {
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+    },
+    "name": "5 White Oak Lane, Stony Point, NY 10980, USA"
+}, {
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+        "longitude": -746188906
+    },
+    "name": "Berkshire Valley Management Area Trail, Jefferson, NJ, USA"
+}, {
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+    "name": "6 East Emerald Isle Drive, Lake Hopatcong, NJ 07849, USA"
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+    },
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+    "name": "66 Pleasantview Avenue, Monticello, NY 12701, USA"
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+    "name": "100 Mount Pleasant Avenue, Newark, NJ 07104, USA"
+}, {
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+        "longitude": -742870190
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+    "name": "517-521 Huntington Drive, Manchester Township, NJ 08759, USA"
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+    "name": "9 Thompson Avenue, Leonardo, NJ 07737, USA"
+}, {
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+    "location": {
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+        "longitude": -741718005
+    },
+    "name": "213 Bush Road, Stone Ridge, NY 12484, USA"
+}, {
+    "location": {
+        "latitude": 415034302,
+        "longitude": -743850945
+    },
+    "name": ""
+}, {
+    "location": {
+        "latitude": 411349992,
+        "longitude": -743694161
+    },
+    "name": ""
+}, {
+    "location": {
+        "latitude": 404839914,
+        "longitude": -744759616
+    },
+    "name": "1-17 Bergen Court, New Brunswick, NJ 08901, USA"
+}, {
+    "location": {
+        "latitude": 414638017,
+        "longitude": -745957854
+    },
+    "name": "35 Oakland Valley Road, Cuddebackville, NY 12729, USA"
+}, {
+    "location": {
+        "latitude": 412127800,
+        "longitude": -740173578
+    },
+    "name": ""
+}, {
+    "location": {
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+        "longitude": -747964303
+    },
+    "name": ""
+}, {
+    "location": {
+        "latitude": 412843391,
+        "longitude": -749086026
+    },
+    "name": ""
+}, {
+    "location": {
+        "latitude": 418512773,
+        "longitude": -743067823
+    },
+    "name": ""
+}, {
+    "location": {
+        "latitude": 404318328,
+        "longitude": -740835638
+    },
+    "name": "42-102 Main Street, Belford, NJ 07718, USA"
+}, {
+    "location": {
+        "latitude": 419020746,
+        "longitude": -741172328
+    },
+    "name": ""
+}, {
+    "location": {
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+        "longitude": -746119569
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+    "name": ""
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+        "longitude": -744035134
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+    "name": ""
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+    "location": {
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+    "name": ""
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+    "name": ""
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+    "name": "3387 Richmond Terrace, Staten Island, NY 10303, USA"
+}, {
+    "location": {
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+        "longitude": -744597778
+    },
+    "name": "261 Van Sickle Road, Goshen, NY 10924, USA"
+}, {
+    "location": {
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+        "longitude": -746859398
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+    "name": ""
+}, {
+    "location": {
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+        "longitude": -744228360
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+    "name": ""
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+    "location": {
+        "latitude": 410248224,
+        "longitude": -747127767
+    },
+    "name": "3 Hasta Way, Newton, NJ 07860, USA"
+}]
diff --git a/python/route_guide/route_guide_pb2.py b/python/route_guide/route_guide_pb2.py
new file mode 100644
index 0000000000..2a4532bb75
--- /dev/null
+++ b/python/route_guide/route_guide_pb2.py
@@ -0,0 +1,370 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: route_guide.proto
+
+import sys
+_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import symbol_database as _symbol_database
+from google.protobuf import descriptor_pb2
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+
+
+DESCRIPTOR = _descriptor.FileDescriptor(
+  name='route_guide.proto',
+  package='',
+  serialized_pb=_b('\n\x11route_guide.proto\",\n\x05Point\x12\x10\n\x08latitude\x18\x01 \x01(\x05\x12\x11\n\tlongitude\x18\x02 \x01(\x05\"3\n\tRectangle\x12\x12\n\x02lo\x18\x01 \x01(\x0b\x32\x06.Point\x12\x12\n\x02hi\x18\x02 \x01(\x0b\x32\x06.Point\"1\n\x07\x46\x65\x61ture\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x18\n\x08location\x18\x02 \x01(\x0b\x32\x06.Point\"6\n\tRouteNote\x12\x18\n\x08location\x18\x01 \x01(\x0b\x32\x06.Point\x12\x0f\n\x07message\x18\x02 \x01(\t\"b\n\x0cRouteSummary\x12\x13\n\x0bpoint_count\x18\x01 \x01(\x05\x12\x15\n\rfeature_count\x18\x02 \x01(\x05\x12\x10\n\x08\x64istance\x18\x03 \x01(\x05\x12\x14\n\x0c\x65lapsed_time\x18\x04 \x01(\x05\x32\xad\x01\n\nRouteGuide\x12 \n\nGetFeature\x12\x06.Point\x1a\x08.Feature\"\x00\x12(\n\x0cListFeatures\x12\n.Rectangle\x1a\x08.Feature\"\x00\x30\x01\x12(\n\x0bRecordRoute\x12\x06.Point\x1a\r.RouteSummary\"\x00(\x01\x12)\n\tRouteChat\x12\n.RouteNote\x1a\n.RouteNote\"\x00(\x01\x30\x01')
+)
+_sym_db.RegisterFileDescriptor(DESCRIPTOR)
+
+
+
+
+_POINT = _descriptor.Descriptor(
+  name='Point',
+  full_name='Point',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='latitude', full_name='Point.latitude', index=0,
+      number=1, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='longitude', full_name='Point.longitude', index=1,
+      number=2, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=21,
+  serialized_end=65,
+)
+
+
+_RECTANGLE = _descriptor.Descriptor(
+  name='Rectangle',
+  full_name='Rectangle',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='lo', full_name='Rectangle.lo', index=0,
+      number=1, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='hi', full_name='Rectangle.hi', index=1,
+      number=2, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=67,
+  serialized_end=118,
+)
+
+
+_FEATURE = _descriptor.Descriptor(
+  name='Feature',
+  full_name='Feature',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='name', full_name='Feature.name', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='location', full_name='Feature.location', index=1,
+      number=2, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=120,
+  serialized_end=169,
+)
+
+
+_ROUTENOTE = _descriptor.Descriptor(
+  name='RouteNote',
+  full_name='RouteNote',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='location', full_name='RouteNote.location', index=0,
+      number=1, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='message', full_name='RouteNote.message', index=1,
+      number=2, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=171,
+  serialized_end=225,
+)
+
+
+_ROUTESUMMARY = _descriptor.Descriptor(
+  name='RouteSummary',
+  full_name='RouteSummary',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='point_count', full_name='RouteSummary.point_count', index=0,
+      number=1, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='feature_count', full_name='RouteSummary.feature_count', index=1,
+      number=2, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='distance', full_name='RouteSummary.distance', index=2,
+      number=3, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='elapsed_time', full_name='RouteSummary.elapsed_time', index=3,
+      number=4, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=227,
+  serialized_end=325,
+)
+
+_RECTANGLE.fields_by_name['lo'].message_type = _POINT
+_RECTANGLE.fields_by_name['hi'].message_type = _POINT
+_FEATURE.fields_by_name['location'].message_type = _POINT
+_ROUTENOTE.fields_by_name['location'].message_type = _POINT
+DESCRIPTOR.message_types_by_name['Point'] = _POINT
+DESCRIPTOR.message_types_by_name['Rectangle'] = _RECTANGLE
+DESCRIPTOR.message_types_by_name['Feature'] = _FEATURE
+DESCRIPTOR.message_types_by_name['RouteNote'] = _ROUTENOTE
+DESCRIPTOR.message_types_by_name['RouteSummary'] = _ROUTESUMMARY
+
+Point = _reflection.GeneratedProtocolMessageType('Point', (_message.Message,), dict(
+  DESCRIPTOR = _POINT,
+  __module__ = 'route_guide_pb2'
+  # @@protoc_insertion_point(class_scope:Point)
+  ))
+_sym_db.RegisterMessage(Point)
+
+Rectangle = _reflection.GeneratedProtocolMessageType('Rectangle', (_message.Message,), dict(
+  DESCRIPTOR = _RECTANGLE,
+  __module__ = 'route_guide_pb2'
+  # @@protoc_insertion_point(class_scope:Rectangle)
+  ))
+_sym_db.RegisterMessage(Rectangle)
+
+Feature = _reflection.GeneratedProtocolMessageType('Feature', (_message.Message,), dict(
+  DESCRIPTOR = _FEATURE,
+  __module__ = 'route_guide_pb2'
+  # @@protoc_insertion_point(class_scope:Feature)
+  ))
+_sym_db.RegisterMessage(Feature)
+
+RouteNote = _reflection.GeneratedProtocolMessageType('RouteNote', (_message.Message,), dict(
+  DESCRIPTOR = _ROUTENOTE,
+  __module__ = 'route_guide_pb2'
+  # @@protoc_insertion_point(class_scope:RouteNote)
+  ))
+_sym_db.RegisterMessage(RouteNote)
+
+RouteSummary = _reflection.GeneratedProtocolMessageType('RouteSummary', (_message.Message,), dict(
+  DESCRIPTOR = _ROUTESUMMARY,
+  __module__ = 'route_guide_pb2'
+  # @@protoc_insertion_point(class_scope:RouteSummary)
+  ))
+_sym_db.RegisterMessage(RouteSummary)
+
+
+import abc
+from grpc._adapter import fore
+from grpc._adapter import rear
+from grpc.framework.assembly import implementations
+from grpc.framework.assembly import utilities
+class EarlyAdopterRouteGuideServicer(object):
+  """<fill me in later!>"""
+  __metaclass__ = abc.ABCMeta
+  @abc.abstractmethod
+  def GetFeature(self, request):
+    raise NotImplementedError()
+  @abc.abstractmethod
+  def ListFeatures(self, request):
+    raise NotImplementedError()
+  @abc.abstractmethod
+  def RecordRoute(self, request_iterator):
+    raise NotImplementedError()
+  @abc.abstractmethod
+  def RouteChat(self, request_iterator):
+    raise NotImplementedError()
+class EarlyAdopterRouteGuideServer(object):
+  """<fill me in later!>"""
+  __metaclass__ = abc.ABCMeta
+  @abc.abstractmethod
+  def start(self):
+    raise NotImplementedError()
+  @abc.abstractmethod
+  def stop(self):
+    raise NotImplementedError()
+class EarlyAdopterRouteGuideStub(object):
+  """<fill me in later!>"""
+  __metaclass__ = abc.ABCMeta
+  @abc.abstractmethod
+  def GetFeature(self, request):
+    raise NotImplementedError()
+  GetFeature.async = None
+  @abc.abstractmethod
+  def ListFeatures(self, request):
+    raise NotImplementedError()
+  ListFeatures.async = None
+  @abc.abstractmethod
+  def RecordRoute(self, request_iterator):
+    raise NotImplementedError()
+  RecordRoute.async = None
+  @abc.abstractmethod
+  def RouteChat(self, request_iterator):
+    raise NotImplementedError()
+  RouteChat.async = None
+def early_adopter_create_RouteGuide_server(servicer, port, root_certificates, key_chain_pairs):
+  method_implementations = {
+    "GetFeature": utilities.unary_unary_inline(servicer.GetFeature),
+    "ListFeatures": utilities.unary_stream_inline(servicer.ListFeatures),
+    "RecordRoute": utilities.stream_unary_inline(servicer.RecordRoute),
+    "RouteChat": utilities.stream_stream_inline(servicer.RouteChat),
+  }
+  import route_guide_pb2
+  import route_guide_pb2
+  import route_guide_pb2
+  import route_guide_pb2
+  request_deserializers = {
+    "GetFeature": route_guide_pb2.Point.FromString,
+    "ListFeatures": route_guide_pb2.Rectangle.FromString,
+    "RecordRoute": route_guide_pb2.Point.FromString,
+    "RouteChat": route_guide_pb2.RouteNote.FromString,
+  }
+  response_serializers = {
+    "GetFeature": lambda x: x.SerializeToString(),
+    "ListFeatures": lambda x: x.SerializeToString(),
+    "RecordRoute": lambda x: x.SerializeToString(),
+    "RouteChat": lambda x: x.SerializeToString(),
+  }
+  link = fore.activated_fore_link(port, request_deserializers, response_serializers, root_certificates, key_chain_pairs)
+  return implementations.assemble_service(method_implementations, link)
+def early_adopter_create_RouteGuide_stub(host, port):
+  method_implementations = {
+    "GetFeature": utilities.unary_unary_inline(None),
+    "ListFeatures": utilities.unary_stream_inline(None),
+    "RecordRoute": utilities.stream_unary_inline(None),
+    "RouteChat": utilities.stream_stream_inline(None),
+  }
+  import route_guide_pb2
+  import route_guide_pb2
+  import route_guide_pb2
+  import route_guide_pb2
+  response_deserializers = {
+    "GetFeature": route_guide_pb2.Feature.FromString,
+    "ListFeatures": route_guide_pb2.Feature.FromString,
+    "RecordRoute": route_guide_pb2.RouteSummary.FromString,
+    "RouteChat": route_guide_pb2.RouteNote.FromString,
+  }
+  request_serializers = {
+    "GetFeature": lambda x: x.SerializeToString(),
+    "ListFeatures": lambda x: x.SerializeToString(),
+    "RecordRoute": lambda x: x.SerializeToString(),
+    "RouteChat": lambda x: x.SerializeToString(),
+  }
+  link = rear.activated_rear_link(host, port, request_serializers, response_deserializers)
+  return implementations.assemble_dynamic_inline_stub(method_implementations, link)
+# @@protoc_insertion_point(module_scope)
diff --git a/python/route_guide/route_guide_server.py b/python/route_guide/route_guide_server.py
new file mode 100644
index 0000000000..51cbd0dc84
--- /dev/null
+++ b/python/route_guide/route_guide_server.py
@@ -0,0 +1,147 @@
+# 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.
+
+"""The Python implementation of the gRPC route guide server."""
+
+import json
+import time
+import math
+
+import route_guide_pb2
+
+_ONE_DAY_IN_SECONDS = 60 * 60 * 24
+
+
+def read_route_guide_db():
+  """Reads the route guide"""
+  feature_list = []
+  with open("route_guide_db.json") as route_guide_db_file:
+    for item in json.load(route_guide_db_file):
+      feature = route_guide_pb2.Feature(name=item["name"])
+      feature.location.longitude = item["location"]["longitude"]
+      feature.location.latitude = item["location"]["latitude"]
+      feature_list.append(feature)
+  return feature_list
+
+
+def get_feature(feature_db, point):
+  """Returns feature at given location or None"""
+  for feature in feature_db:
+    if feature.location == point:
+      return feature
+  return None
+
+
+def get_distance(start, end):
+  """Distance between two points"""
+  coord_factor = 10000000.0
+  lat_1 = start.latitude / coord_factor
+  lat_2 = end.latitude / coord_factor
+  lon_1 = start.latitude / coord_factor
+  lon_2 = end.longitude / coord_factor
+  lat_rad_1 = math.radians(lat_1)
+  lat_rad_2 = math.radians(lat_2)
+  delta_lat_rad = math.radians(lat_2 - lat_1)
+  delta_lon_rad = math.radians(lon_2 - lon_1)
+
+  a = pow(math.sin(delta_lat_rad / 2), 2) + math.cos(lat_rad_1) * math.cos(lat_rad_2) * pow(math.sin(delta_lon_rad / 2), 2)
+  c = 2 * math.atan2(math.sqrt(a), math.sqrt(1-a))
+  R = 6371000; # metres
+  return R * c;
+
+class RouteGuideServicer(route_guide_pb2.EarlyAdopterRouteGuideServicer):
+  """Provides methods that implement functionality of route guide server."""
+
+  def __init__(self):
+    self.db = read_route_guide_db()
+
+  def GetFeature(self, request, context):
+    feature = get_feature(self.db, request)
+    if not feature:
+      feature = route_guide_pb2.Feature(name="")
+      feature.location.longitude = request.longitude
+      feature.location.latitude = request.latitude
+    return feature
+
+  def ListFeatures(self, request, context):
+    lo = request.lo
+    hi = request.hi
+    left = min(lo.longitude, hi.longitude)
+    right = max(lo.longitude, hi.longitude)
+    top = max(lo.latitude, hi.latitude)
+    bottom = min(lo.latitude, hi.latitude)
+    for feature in self.db:
+      if (feature.location.longitude >= left and
+          feature.location.longitude <= right and
+          feature.location.latitude >= bottom and
+          feature.location.latitude <= top):
+        yield feature
+
+  def RecordRoute(self, request_iterator, context):
+    point_count = 0
+    feature_count = 0
+    distance = 0.0
+    prev_point = None
+
+    start_time = time.time()
+    for point in request_iterator:
+      point_count += 1
+      if get_feature(self.db, point):
+        feature_count += 1
+      if prev_point:
+        distance += get_distance(prev_point, point)
+      prev_point = point
+
+    elapsed_time = time.time() - start_time
+    return route_guide_pb2.RouteSummary(point_count=point_count,
+                                        feature_count=feature_count,
+                                        distance=int(distance),
+                                        elapsed_time=int(elapsed_time))
+
+  def RouteChat(self, request_iterator, context):
+    prev_notes = []
+    for new_note in request_iterator:
+      for prev_note in prev_notes:
+        if prev_note.location == new_note.location:
+          yield prev_note
+      prev_notes.append(new_note)
+
+
+def serve():
+  server = route_guide_pb2.early_adopter_create_RouteGuide_server(
+      RouteGuideServicer(), 50051, None, None)
+  server.start()
+  try:
+    while True:
+      time.sleep(_ONE_DAY_IN_SECONDS)
+  except KeyboardInterrupt:
+    server.stop()
+
+if __name__ == '__main__':
+  serve()
diff --git a/python/route_guide/run_client.sh b/python/route_guide/run_client.sh
new file mode 100755
index 0000000000..d2552c2858
--- /dev/null
+++ b/python/route_guide/run_client.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# This is where you have cloned out the https://github.com/grpc/grpc repository
+# And built gRPC Python.
+# ADJUST THIS PATH TO WHERE YOUR ACTUAL LOCATION IS
+GRPC_ROOT=~/github/grpc
+
+$GRPC_ROOT/python2.7_virtual_environment/bin/python -B route_guide_client.py
diff --git a/python/route_guide/run_codegen.sh b/python/route_guide/run_codegen.sh
new file mode 100755
index 0000000000..689e0978de
--- /dev/null
+++ b/python/route_guide/run_codegen.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+# Runs the protoc with gRPC plugin to generate protocol messages and gRPC stubs.
+protoc -I . --python_out=. --grpc_out=. --plugin=protoc-gen-grpc=`which grpc_python_plugin` route_guide.proto
diff --git a/python/route_guide/run_server.sh b/python/route_guide/run_server.sh
new file mode 100755
index 0000000000..8f759250c8
--- /dev/null
+++ b/python/route_guide/run_server.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# This is where you have cloned out the https://github.com/grpc/grpc repository
+# And built gRPC Python.
+# ADJUST THIS PATH TO WHERE YOUR ACTUAL LOCATION IS
+GRPC_ROOT=~/github/grpc
+
+$GRPC_ROOT/python2.7_virtual_environment/bin/python -B route_guide_server.py