def coerce_to_immutabledict(d):
if not d:
return EMPTY_DICT
elif isinstance(d, immutabledict):
return d
else:
return immutabledict(d)
def _immutabledict_reconstructor(*arg):
"""do the pickle dance"""
return immutabledict(*arg)
def _immutabledict_reconstructor(*arg):
"""do the pickle dance"""
return immutabledict(*arg)
def coerce_to_immutabledict(d):
if not d:
return EMPTY_DICT
elif isinstance(d, immutabledict):
return d
else:
return immutabledict(d)
EMPTY_DICT = immutabledict()
class FacadeDict(ImmutableContainer, dict):
"""A dictionary that is not publicly mutable."""
clear = pop = popitem = setdefault = update = ImmutableContainer._immutable
def __new__(cls, *args):
new = dict.__new__(cls)
return new
def copy(self):
raise NotImplementedError(
"an immutabledict shouldn't need to be copied. use dict(d) "
"if you need a mutable dictionary.")
