DictExamples.py

# Initialization
dictionary = {'string key': "string value", 
             ('tuple', 'key'): {'dict': "value"}, 
             123: "Value for int key"}

# Assign a key a new value
dictionary[123] = "New Value"

# Retrieve all keys from a dictionary
keys = dictionary.keys()
print(keys)
#>>> dict_keys(['string key', ('tuple', 'key'), 123])

# Retrieve all values from dictionary
values = dictionary.values()
print(values)
#>>> dict_values(['string value',  {'dict': "value"}, 'New Value'])

# The items method returns an iterable object for traversing
for key, value in dictionary.items():
  print("Key: {}, Value: {}".format(key, value))