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fix(base.Fitness): fitness value contains np.nan is now invalid #445

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fix(base.Fitness): fitness value contains np.nan is now invalid #445

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3 changes: 2 additions & 1 deletion deap/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@ class used as base class, for the fitness member of any individual. """
from copy import deepcopy
from functools import partial
from operator import mul, truediv
import numpy as np


class Toolbox(object):
Expand Down Expand Up @@ -225,7 +226,7 @@ def dominates(self, other, obj=slice(None)):
@property
def valid(self):
"""Assess if a fitness is valid or not."""
return len(self.wvalues) != 0
return len(self.wvalues) != 0 and all(not np.isnan(val) for val in self.wvalues)
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How about

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return len(self.wvalues) != 0 and all(not np.isnan(val) for val in self.wvalues)
return len(self.wvalues) != 0 and not np.isnan(self.wvalues).any()


def __hash__(self):
return hash(self.wvalues)
Expand Down