# Path: pydal/_compat.py
# PY2 = sys.version_info[0] == 2
#     def implements_bool(cls):
#     def implements_iterator(cls):
#     def to_bytes(obj, charset="utf-8", errors="strict"):
#     def to_native(obj, charset="utf8", errors="strict"):
#     def to_bytes(obj, charset="utf-8", errors="strict"):
#     def to_native(obj, charset="utf8", errors="strict"):
# def with_metaclass(meta, *bases):
#         def __new__(cls, name, this_bases, d):
# def to_unicode(obj, charset="utf-8", errors="strict"):
#     class metaclass(meta):
# 
# Path: pydal/helpers/serializers.py
# class Serializers(object):
#     def _json_parse(self, o):
#     def __getattr__(self, name):
#     def json(self, value):
#     def yaml(self, value):


import copy
import marshal
import struct
import threading
import time
import traceback
            import types
from .._compat import (
    PY2,
    exists,
    copyreg,
    implements_bool,
    iterkeys,
    itervalues,
    iteritems,
    to_bytes,
    long,
)
from .._globals import THREAD_LOCAL
from .serializers import serializers
# -*- coding: utf-8 -*-




class cachedprop(object):
    #: a read-only @property that is only evaluated once.
    def __init__(self, fget, doc=None):
        self.fget = fget
        self.__doc__ = doc or fget.__doc__
        self.__name__ = fget.__name__

    def __get__(self, obj, cls):
        if obj is None:
            return self
        obj.__dict__[self.__name__] = result = self.fget(obj)
        return result



# Path: pydal/_compat.py
# PY2 = sys.version_info[0] == 2
#     def implements_bool(cls):
#     def implements_iterator(cls):
#     def to_bytes(obj, charset="utf-8", errors="strict"):
#     def to_native(obj, charset="utf8", errors="strict"):
#     def to_bytes(obj, charset="utf-8", errors="strict"):
#     def to_native(obj, charset="utf8", errors="strict"):
# def with_metaclass(meta, *bases):
#         def __new__(cls, name, this_bases, d):
# def to_unicode(obj, charset="utf-8", errors="strict"):
#     class metaclass(meta):
# 
# Path: pydal/helpers/serializers.py
# class Serializers(object):
#     def _json_parse(self, o):
#     def __getattr__(self, name):
#     def json(self, value):
#     def yaml(self, value):


# Path: pydal/helpers/classes.py
import copy
import marshal
import struct
import threading
import time
import traceback
            import types
from .._compat import (
    PY2,
    exists,
    copyreg,
    implements_bool,
    iterkeys,
    itervalues,
    iteritems,
    to_bytes,
    long,
)
from .._globals import THREAD_LOCAL
from .serializers import serializers

# -*- coding: utf-8 -*-




class cachedprop(object):
    #: a read-only @property that is only evaluated once.
    def __init__(self, fget, doc=None):
        self.fget = fget
        self.__doc__ = doc or fget.__doc__
        self.__name__ = fget.__name__

    def __get__(self, obj, cls):
        if obj is None:
            return self
        obj.__dict__[self.__name__] = result = self.fget(obj)
        return result



@implements_bool