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MyJSON.py

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import json

person = {"Name":"Ram","Age":20,"IsMale":True}

person_json= json.dumps(person, indent=4,sort_keys=True) #separators=(":","=")

print(person_json)

person1 = json.loads(person_json)

print(person1)

##########################

# Read Json from file

#######################

with open("person.json","r") as file:

person = json.load(file)

print(person)

#########################

# write in file

##############

# with open("person.json","w") as file:

# json.dump(person,file,indent=4)

###############################

# Encode Class into JSON

####################

class User:

def __init__(self,name,age):

self.name = name

self.age = age

user = User("Raam",20)

# Encode using custom method:-

def encode_user(o):

if isinstance(o,User):

return {"Name":o.name, "Age": o.age, o.__class__.__name__: True}

else:

raise TypeError("Object of type User is not JSON serializable.")

user_json = json.dumps(user,default=encode_user)

print(user_json)

#######################

# Encode using Custom Class

from json import JSONEncoder

class UserCustomEncoder(JSONEncoder):

def default(self, o):

if isinstance(o,User):

return {"name":o.name,"age":o.age,o.__class__.__name__:True}

else:

super.default(self,o)

userjson1 = json.dumps(user, cls=UserCustomEncoder)

# OR

userJson2 = UserCustomEncoder().encode(user)

print(userjson1)

print(userJson2)

#########################

# Decode JSON into Python Object

########################

user_python = json.loads(userJson2)

print(type(user_python)) # this is not a object, this is Dictionary

def decode_user(dct):

if User.__name__ in dct:

return User(name=dct["name"],age=dct["age"])

return dct

user_py = json.loads(userJson2,object_hook=decode_user)

print(type(user_py))

print(user_py.name, user_py.age)

########################################

######################################

###########################