def deepcopy(x, memo=None, _nil=[]):
"""Deep copy operation on arbitrary Python objects.
See the module's __doc__ string for more info.
"""
if memo is None:
memo = {}
d = id(x)
y = memo.get(d, _nil)
if y is not _nil:
return y
cls = type(x)
copier = _deepcopy_dispatch.get(cls)
if copier:
y = copier(x, memo)
else:
try:
issc = issubclass(cls, type)
except TypeError: # cls is not a class (old Boost; see SF #502085)
issc = 0
if issc:
y = _deepcopy_atomic(x, memo)
else:
copier = getattr(x, "__deepcopy__", None)
if copier:
y = copier(memo)
else:
# reductor = dispatch_table.get(cls)
# if reductor:
# rv = reductor(x)
# else:
if True: ###
reductor = getattr(x, "__reduce_ex__", None)
if reductor:
rv = reductor(2)
else:
reductor = getattr(x, "__reduce__", None)
if reductor:
rv = reductor()
else:
# raise Error(
# "un(deep)copyable object of type %s" % cls)
rv = copyreg._reduce_ex(
x, 1) ### object doesn't have __reduce_ex__
y = _reconstruct(x, rv, 1, memo)
# If is its own copy, don't memoize.
if y is not x:
memo[d] = y
_keep_alive(x, memo) # Make sure x lives at least as long as d
return y
def copy(x):
"""Shallow copy operation on arbitrary Python objects.
See the module's __doc__ string for more info.
"""
cls = type(x)
copier = _copy_dispatch.get(cls)
if copier:
return copier(x)
try:
issc = issubclass(cls, type)
except TypeError: # cls is not a class
issc = False
if issc:
# treat it as a regular class:
return _copy_immutable(x)
copier = getattr(cls, "__copy__", None)
if copier:
return copier(x)
# reductor = dispatch_table.get(cls)
# if reductor:
# rv = reductor(x)
# else:
if True: ###
reductor = getattr(x, "__reduce_ex__", None)
if reductor:
rv = reductor(2)
else:
reductor = getattr(x, "__reduce__", None)
if reductor:
rv = reductor()
else:
# raise Error("un(shallow)copyable object of type %s" % cls)
rv = copyreg._reduce_ex(
x, 1) ### object doesn't have __reduce_ex__
return _reconstruct(x, rv, 0)
def reduce_1(obj, proto):
global copyreg
if not copyreg:
import copyreg
return copyreg._reduce_ex(obj, proto)
def update_event(self, inp=-1):
self.set_output_val(0, copyreg._reduce_ex(self.input(0)))
