I have the following code to convert common objects to JSON. On my dev
box it works fine, but on production is simply does not and I can't
really debug. Any suggestions?
import types
class TestObject():
def __init__(self):
self.dict = {'test class':'jaja'}
self.name = 'testobject'
self.lijst = ['ss','s','jaj']
self.bool = True
class JsonEncoder():
ATTRIBUTES_TO_SKIP = ['__doc__','__module__']
@staticmethod
def encode(obj):
return JsonEncoder._encode(obj, type(obj))
@staticmethod
def _encode(obj,type,baseNr = 0):
typeCaseSwitch= {
types.DictType: JsonEncoder.encodeDict
,types.InstanceType:
JsonEncoder.encodeInstance
,types.NoneType: JsonEncoder.encodeNone
,types.StringType: JsonEncoder.encodeStr
,types.UnicodeType: JsonEncoder.encodeStr
,types.ListType: JsonEncoder.encodeList
,types.BooleanType: JsonEncoder.encodeBool
,types.IntType: JsonEncoder.encodeInt
,types.TupleType: JsonEncoder.encodeList
}
try:
return typeCaseSwitch[type](obj)
except Exception, inst:
if len(obj.__class__.__bases__) > 0:
baseType = obj.__class__.__bases__[++baseNr]
return JsonEncoder._encode(obj, baseType)
@staticmethod
def encodeDict(obj):
result = []
for key in obj:
result.append(JsonEncoder.encode(key) + ':' +
JsonEncoder.encode(obj[key]))
return '{' + ','.join(result) + '}'
@staticmethod
def encodeList(obj):
result = []
for item in obj:
result.append(JsonEncoder.encode(item))
return '[' + ','.join(result) + ']' if len(result) > 0 else
'[]'
@staticmethod
def encodeBool(obj):
return str(obj).lower()
@staticmethod
def encodeInt(obj):
return str(obj)
@staticmethod
def encodeStr(obj):
#obj = obj.replace('/', r'\/')
obj = obj.replace('"', r'\"')
obj = obj.replace('\b', r'\b')
obj = obj.replace('\f', r'\f')
obj = obj.replace('\n', r'')
obj = obj.replace('\r', r'')
obj = obj.replace('\t', r'')
return '"' + str(obj).replace('\\','\\\\').replace('\"','\\
\"') + '"'
@staticmethod
def encodeNone(obj):
return 'null'
@staticmethod
def encodeInstance(obj):
callableAttribs = []
for attrib in dir(obj):
if not callable(getattr(obj, attrib)) and attrib not in
JsonEncoder.ATTRIBUTES_TO_SKIP:
callableAttribs.append('"' + attrib + '":' +
JsonEncoder.encode(getattr(obj, attrib)))
if len(callableAttribs) > 0:
return '{' + ','.join(callableAttribs) + '}'
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