orderedmultidict_basic_usage_multivalue_keys_and_retrieval.py

1from orderedmultidict import omdict
2
3# Create a new ordered multidict
4omd = omdict([('a', 1), ('b', 2), ('a', 3)])
5
6# Accessing values
7# Returns the most recent value for the key
8assert omd['a'] == 3
9
10# Returns all values for a key
11assert omd.getlist('a') == [1, 3]
12
13# Adding values
14omd.add('b', 4)
15assert omd.getlist('b') == [2, 4]
16
17# Order is preserved based on insertion
18assert list(omd.items()) == [('a', 1), ('b', 2), ('a', 3), ('b', 4)]