Json

Exercises

1)

File: ex2.py

import json

list1 = [ "item1" , "item2" , "item3" ]

dict1 = { "key1" : "value1" , "key2" : "value2" , "key3" : list1 }

Convert the dictionary object to Json string and print it out. Load the Json string into a Python object and print out the Python object.

2)

What is the output of the following code ?

import json

class Person:

def __init__( self, name, job=None, pay=0 ): # Normal function args

self.name = name

self.job = job

self.pay = pay

p1 = Person( "John" , "Eng", 100 )

jsonString1 = json.dumps( p1 )

print( jsonString1 )

Answers

1)

import json

list1 = [ "item1" , "item2" , "item3" ]

dict1 = { "key1" : "value1" , "key2" : "value2" , "key3" : list1 }

jsonString1 = json.dumps( dict1 )

#We are printing a json string out.

#Now we load this back up to initialize a new dictionary object

print( jsonString1 )

print( "--------------------------------------------" )

dict2 = json.loads( jsonString1 )

print( dict2 )

2)

We cannot convert a custom class object to Json in Python.