[英]How to save the dictionary that have tuple keys
我想保存在键上有元组的字典。
我尝试了pickle,ujson,json来保存字典。 他们都没有工作。
该词典有:
dictionary = {(-30, -29, -72, -71): [[-29.99867621124457, -71.75349423197208, 220], [-29.996964568219873, -71.7521560207641, 220], [-29.99696437241995, -71.7507330056961, 220], [-29.99761665426199, -71.75016101067708, 220]]}
我试过了:
with open('depth_echo.txt', 'w') as file:
file.write(ujson.dumps(dictionary)
import json
a, b, c = "abc"
data = {(1,2,3):(a,b,c), (2,6,3):(6,3,2)}
on_disk = json.dumps(data.items())
把字典写成字符串
with open(r'test.txt','w+') as f:
f.write(str(dictionary))
使用eval
读取
dic = ''
with open(r'test.txt','r') as f:
for i in f.readlines():
dic=i #string
dic = eval(dic) # this is orignal dict with instace dict
您应该使用ujson
,这适合解决您想要的问题。 我刚试过,它工作正常。 如果使用json
,则会出现以下错误:
TypeError:键必须为str,int,float,bool或None,而不是元组
import ujson
d = {(-30, -29, -72, -71): [[-29.99867621124457, -71.75349423197208, 220], [-29.996964568219873, -71.7521560207641, 220], [-29.99696437241995, -71.7507330056961, 220], [-29.99761665426199, -71.75016101067708, 220]]}
# save dictionary
with open('depth_echo.txt', 'w') as file:
file.write(ujson.dumps(d))
确保安装了ujson
因为它不是Python标准库的一部分:
pip install ujson
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