def isNewStyleClass(o):
try:
# would give a NameError on Python <= 2.1
return issubclass(o,object)
except TypeError:
return 0
else:
def isNewStyleClass(o):
return 0
hasSlots = lambda o: hasattr(o,'__slots__')
hasInit = lambda o: hasattr(o,'__init__')
hasDictAttrs = lambda o: (hasattr(o,'__dict__') and o.__dict__)
isInstanceLike = lazy_any(isInstance, hasDictAttrs, hasSlots)
hasCompoundShape = and_(isInstanceLike, not_(isInstance))
true_container = lambda o: type(o) in containers
true_simpletype = lambda o: type(o) in simpletypes
true_datatype = or_(true_container, true_simpletype)
child_container = and_(not_(true_container), isContainer)
child_simpletype = and_(not_(true_simpletype), isSimpleType)
child_datatype = or_(child_container, child_simpletype)
def hasCoreData(o):
"""Is 'o' an object subclassed from a builtin type?
(i.e. does it contain data other than attributes)
We only want subclasses, not the class itself (otherwise we'd
catch ALL lists, integers, etc.)
"""
def isNewStyleClass(o):
try:
# would give a NameError on Python <= 2.1
return issubclass(o,object)
except TypeError:
return 0
else:
def isNewStyleClass(o):
return 0
hasSlots = lambda o: hasattr(o,'__slots__')
hasInit = lambda o: hasattr(o,'__init__')
hasDictAttrs = lambda o: (hasattr(o,'__dict__') and o.__dict__)
isInstanceLike = lazy_any(isInstance, hasDictAttrs, hasSlots)
hasCompoundShape = and_(isInstanceLike, not_(isInstance))
true_container = lambda o: type(o) in containers
true_simpletype = lambda o: type(o) in simpletypes
true_datatype = or_(true_container, true_simpletype)
child_container = and_(not_(true_container), isContainer)
child_simpletype = and_(not_(true_simpletype), isSimpleType)
child_datatype = or_(child_container, child_simpletype)
def hasCoreData(o):
"""Is 'o' an object subclassed from a builtin type?
(i.e. does it contain data other than attributes)
We only want subclasses, not the class itself (otherwise we'd
catch ALL lists, integers, etc.)
"""