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diff --git a/examples/list_people.py b/examples/list_people.py
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+++ b/examples/list_people.py
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+#! /usr/bin/python
+
+# See README.txt for information and build instructions.
+
+import addressbook_pb2
+import sys
+
+# Iterates though all people in the AddressBook and prints info about them.
+def ListPeople(address_book):
+  for person in address_book.person:
+    print "Person ID:", person.id
+    print "  Name:", person.name
+    if person.HasField('email'):
+      print "  E-mail address:", person.email
+
+    for phone_number in person.phone:
+      if phone_number.type == addressbook_pb2.Person.MOBILE:
+        print "  Mobile phone #: ",
+      elif phone_number.type == addressbook_pb2.Person.HOME:
+        print "  Home phone #: ",
+      elif phone_number.type == addressbook_pb2.Person.WORK:
+        print "  Work phone #: ",
+      print phone_number.number
+
+# Main procedure:  Reads the entire address book from a file and prints all
+#   the information inside.
+if len(sys.argv) != 2:
+  print "Usage:", sys.argv[0], "ADDRESS_BOOK_FILE"
+  sys.exit(-1)
+
+address_book = addressbook_pb2.AddressBook()
+
+# Read the existing address book.
+f = open(sys.argv[1], "rb")
+address_book.ParseFromString(f.read())
+f.close()
+
+ListPeople(address_book)