| import operator | |
| from collections import Counter | |
| from functools import reduce | |
| def add_dicts(*args): | |
| """ | |
| Adds two or more dicts together. Common keys will have their values added. | |
| For example:: | |
| >>> t1 = {'a':1, 'b':2} | |
| >>> t2 = {'b':1, 'c':3} | |
| >>> t3 = {'d':4} | |
| >>> add_dicts(t1, t2, t3) | |
| {'a': 1, 'c': 3, 'b': 3, 'd': 4} | |
| """ | |
| counters = [Counter(arg) for arg in args] | |
| return dict(reduce(operator.add, counters)) | |