3 examples of 'how to add two dictionaries in python' in Python

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615def addDict(base_dict,new_dict):
616 for k in new_dict.keys():
617 new_el=new_dict[k]
618 if not base_dict.has_key(k):
619 # nothing there?, just copy
620 base_dict[k]=new_el
621 else:
622 if type(new_el)==type({}): #another dictionary, recourse
623 addDict(base_dict[k],new_el)
624 else:
625 base_dict[k]+=new_el
77def combine_dicts(dict1, dict2):
78 return dict(dict1.items() + dict2.items())
63def add_dicts_ext(add_func=lambda a, b: a+b, zero=0):
64 def add_dicts(*dicts):
65 res = {}
66 for d in dicts:
67 for k, v in d.iteritems():
68 res[k] = add_func(res.get(k, zero), v)
69 return dict((k, v) for k, v in res.iteritems() if v != zero)
70 return add_dicts

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