Python 将 numpy.nd 数组转换为 json
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Convert numpy.nd array to json
提问by Nayana Madhu
I've a data frame genre_rail in which one column contains numpy.ndarray. The dataframe looks like as given below
我有一个数据框genre_rail，其中一列包含numpy.ndarray. 数据框如下所示
The array in it looks like this :
其中的数组如下所示：
['SINGTEL_movie_22906' 'SINGTEL_movie_22943' 'SINGTEL_movie_24404'
'SINGTEL_movie_22924' 'SINGTEL_movie_22937' 'SINGTEL_movie_22900'
'SINGTEL_movie_24416' 'SINGTEL_movie_24422']
I tried with the following code
我尝试使用以下代码
import json
json_content = json.dumps({'mydata': [genre_rail.iloc[i]['content_id'] for i in range(len(genre_rail))] })
But got an error
但是出错了
TypeError: array is not JSON serializable
类型错误：数组不是 JSON 可序列化的
I need output as
我需要输出为
{"Rail2_contend_id":
["SINGTEL_movie_22894","SINGTEL_movie_22898",
"SINGTEL_movie_22896","SINGTEL_movie_24609","SINGTEL_movie_2455",
"SINGTEL_movie_24550","SINGTEL_movie_24548","SINGTEL_movie_24546"]}
回答by Fadil Olamyy Wahab
How about you convert the array to json using the .tolistmethod.
Then you can write it to json like :
您如何使用该.tolist方法将数组转换为 json 。然后你可以把它写成 json 像：
np_array_to_list = np_array.tolist()
json_file = "file.json"
json.dump(b, codecs.open(json_file, 'w', encoding='utf-8'), sort_keys=True, indent=4)
回答by Bhuvan Kumar
Load all the data in dictionary, then dump it to json. Below code might help you
将所有数据加载到字典中，然后将其转储到 json。下面的代码可能对你有帮助
import json
#Data
d = ['SINGTEL_movie_22906', 'SINGTEL_movie_22943', 'SINGTEL_movie_24404'
'SINGTEL_movie_22924', 'SINGTEL_movie_22937', 'SINGTEL_movie_22900'
'SINGTEL_movie_24416', 'SINGTEL_movie_24422']
#Create dict
dic = {}
dic['Rail2_contend_id'] = d
print dic
#Dump data dict to jason
j = json.dumps(dic)
Output
输出
{'Rail2_contend_id': ['SINGTEL_movie_22906', 'SINGTEL_movie_22943', 'SINGTEL_movie_24404SINGTEL_movie_22924', 'SINGTEL_movie_22937', 'SINGTEL_movie_22900SINGTEL_movie_24416', 'SINGTEL_movie_24422']}
{'Rail2_contend_id'：['SINGTEL_movie_22906'，'SINGTEL_movie_22943'，'SINGTEL_movie_24404SINGTEL_movie_22924'，'SINGTEL_movie_22937'，4SINGTEL_movie_22937'22937'SINGTEL_movie_22937'22937'SINGTEL_movie_22943'SINGTEL_movie_22943'SINGTEL_movie_22937'SINGTEL_movie_22937'SINGTEL_movie_22937'SINGTEL_movie_6SINGTEL_6SINGTEL_6
