def __call__(self, v):
try:
set_v = set(v)
except Exception as e:
raise TypeInvalid(self.msg
or 'cannot be presented as set: {0}'.format(e))
return set_v
def __call__(self, v):
try:
set_v = set(v)
except TypeError as e:
raise TypeInvalid(self.msg
or 'contains unhashable elements: {0}'.format(e))
if len(set_v) != len(v):
seen = set()
dupes = list(set(x for x in v if x in seen or seen.add(x)))
raise Invalid(self.msg
or 'contains duplicate items: {0}'.format(dupes))
return v