Cyber: Add cyber_timer py3 example.

cyber/python/examples/timer.py

@@ -17,22 +17,20 @@
 # ****************************************************************************
 # -*- coding: utf-8 -*-
 """Module for example of timer."""
-import sys
-import os
+
 import time
-import timer
 
 from cyber_py import cyber
 from cyber_py import cyber_timer
 
-global count
+
 count = 0
 
 
 def fun():
     global count
-    print "cb fun is called: ", count
-    count = count + 1
+    print("cb fun is called:", count)
+    count += 1
 
 
 def test_timer():
@@ -42,7 +40,7 @@ def test_timer():
     time.sleep(1)  # 1s
     ct.stop()
 
-    print "+" * 80, "test set_option"
+    print("+" * 80, "test set_option")
     ct2 = cyber_timer.Timer()  # 10ms
     ct2.set_option(10, fun, 0)
     ct2.start()

cyber/python/examples/timer_py3.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+
+# ****************************************************************************
+# Copyright 2019 The Apollo Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ****************************************************************************
+
+"""Module for example of timer."""
+
+import time
+
+from cyber_py import cyber_py3 as cyber
+from cyber_py import cyber_timer_py3 as cyber_timer
+
+
+count = 0
+
+
+def fun():
+    global count
+    print("cb fun is called:", count)
+    count += 1
+
+
+def test_timer():
+    cyber.init()
+    ct = cyber_timer.Timer(10, fun, 0)  # 10ms
+    ct.start()
+    time.sleep(1)  # 1s
+    ct.stop()
+
+    print("+" * 80, "test set_option")
+    ct2 = cyber_timer.Timer()  # 10ms
+    ct2.set_option(10, fun, 0)
+    ct2.start()
+    time.sleep(1)  # 1s
+    ct2.stop()
+
+    cyber.shutdown()
+
+if __name__ == '__main__':
+    test_timer()