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import random
from ricky.param import Param
import decimal
class Enum(Param):
def __init__(self, options=None, **kwargs):
self._options = set(options)
if not self._options:
raise ValueError("Object must be initialized with options set")
super(Enum, self).__init__(**kwargs)
self._validate_options()
def options(self):
return self._options
def _validate_options(self):
try:
pass
except Exception:
raise ValueError('Unable to validate %s\n:' % self.name)
def value_get(self):
return super(Enum, self).value_get()
def value_set(self, value):
if value not in self._options and value is not None:
raise ValueError
super(Enum, self).value_set(value)
value = property(value_get, value_set)
def randomize(self):
self.value_set(random.choice(self._options))
def as_dict(self):
my_dict = super(Enum, self).as_dict()
my_dict['options'] = self._options
return my_dict
def from_normalized(self, value):
maximum = len(self._options - 1)
idx_val = int(round(maximum * value, 0))
self.value = self._options[idx_val]
def as_normalized(self):
maximum = len(self._options - 1)
value = int(self.as_hex(), 16)
return decimal.Decimal(value)/decimal.Decimal(maximum)
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