"""
A simple way to encode a MyObj instance is
to define a function to convert an unknown type to a known type.
This function does not need to do the encoding;
it should simply convert one type of object to another.
"""
# import sys
# sys.path.append('.')
import json_myobj
import json
obj = json_myobj.MyObj('instance value goes here')
print('First attempt')
try:
print(json.dumps(obj))
except TypeError as err:
print('ERROR:', err)
def convert_to_builtin_type(obj):
print('default(', repr(obj), ')')
# Convert objects to a dictionary of their representation.
d = {
'__class__': obj.__class__.__name__,
'__module__': obj.__module__,
}
d.update(obj.__dict__)
return d
# -*- coding: utf-8 -*-
import json
import json_myobj
class MyEncoder(json.JSONEncoder):
def default(self, obj):
print('default(', repr(obj), ')')
# Convert objects to a dictionary of their representation
d = {
'__class__': obj.__class__.__name__,
'__module__': obj.__module__,
}
d.update(obj.__dict__)
return d
obj = json_myobj.MyObj('internal data')
print(obj)
print(MyEncoder().encode(obj))