The map-like callable must be of the form f(func, iterable), returning a sequence of numbers the same length as 'iterable'
calc_energies = list(self._mapwrapper(self.func, parameters_pop[0:nfevs])) calc_energies = np.squeeze(calc_energies) except (TypeError, ValueError) as e: # wrong number of arguments for _mapwrapper # or wrong length returned from the mapper raise RuntimeError( "The map-like callable must be of the form f(func, iterable), " "returning a sequence of numbers the same length as 'iterable'" ) from e if calc_energies.size != nfevs: raise RuntimeError("func(x, *args) must return a scalar value") ener
Comment explaining raise
wrong number of arguments for _mapwrapper or wrong length returned from the mapper
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