Added a simple example of creating dictionary

dictionary.py

@@ -0,0 +1,47 @@
+#!/usr/bin/python3
+#dictionary in python
+
+#creating empty dictionary
+my_dict = {}
+
+print("Empty Dictionary: ")
+print(my_dict)
+
+#Creating a diictionary with int keys and string values then printing it
+
+my_dict = {1: 'Apple', 2: 'Orange', 3: 'Banana'}
+print(my_dict)
+
+#You can access the items of a dictionary by referring to its key name, inside square brackets:
+
+orange = my_dict[2]
+print(orange)
+
+#Creating a diictionary with string keys and printing it
+my_dict = {
+  "brand": "Ford",
+  "model": "Mustang",
+  "year": 1964
+}
+print(my_dict)
+
+#Another example of accessing items from a dictionary by its keys
+
+model = my_dict["model"]
+print(my_dict)
+
+#looping through all the keys in dictionary and printing them
+
+for key in my_dict:
+    print('key in dictionary: ',key)
+
+#looping through all the values in dictionary and printing them
+
+for value in my_dict.values():
+    print('value in dictionary:',value)
+
+#looping through all the key and values in dictionary and printing them
+for key, value in my_dict.items():
+  print(key, value)
+
+