Use of Python JSON modules

Dumps () converts Python data to JSON format

Transformation mapping table

Python JSON
dict object
list,tuple array
str,unicode string
int,float,long number
True true
False false
None null 
import json
li={'a':1.'c':3.'b':2}
print(json.dumps(li))
print(type(json.dumps(li)))
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Set indent to indent

import json
li={'a':1.'c':3.'b':2}
print(json.dumps(li,indent=2))
print(type(json.dumps(li)))
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Sorting sort_keys

import json
li={'a':1.'c':3.'b':2}
print(json.dumps(li,sort_keys=True,indent=2))
print(type(json.dumps(li)))
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Loads () convert JSON data into Python data

Transformation mapping table

JSON Python
object dict
array list
string unicode
number(int) int,long
number(real) float
trun Trun
false False
null None 
import json
li={'data': {'a':1.'c':3.'b':2,}}
a=json.dumps(li)
print(json.loads(a))
print(type(json.loads(a)))
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