def values(d): for v in d.values(): if isinstance(v, dict): for _ in values(v): yield _ else: yield v data = values({1:1,2:{2:2,3:{3:3,4:4}}}) for v in data: print(v) # 1 2 3 4

If using python 3.3+, replacefor _ in values(v): yield _可用yield from values(v)with

It seems that it can only be traversed

# coding: utf-8 p={ 'a':'aa', 'b':{ 'b':'bb', 'c': { 'c': 'cc', 'd': { 'd': 'dd' } } } } def f(d): nl = [] for _ in d.values(): nl += f(_) if isinstance(_, dict) else [_] return nl print f(p)