async sample added

Author: epythonlab

sync.py

@@ -0,0 +1,19 @@
+# synchronous example
+
+import time
+
+def hello():
+    print("hello")
+    time.sleep(5) # delay 5 seconds
+
+def world():
+    print("world")
+    time.sleep(5) # delay 5 seconds
+
+def main():
+    # call the functions
+    hello()
+    world() # this function is executed after the first
+    
+if __name__ == "__main__":
+    main()