code: def _energy_to_enthalpy(energy):
      
      
      pureA = [energy[0][0],energy[0][1]]
      pureB = [energy[1][0],energy[1][1]]
      pureC = [energy[2][0],energy[2][1]]
  
      enthalpy = []
      for en in energy:
          c = en[2]
          conc = [float(i)/sum(c) for i in c]
  
          CE = _en_to_enth(en[0],conc,pureA[0],pureB[0],pureC[0])
          VASP = _en_to_enth(en[1],conc,pureA[1],pureB[1],pureC[1])
  
          enthalpy.append([CE,VASP,c])
  
      return enthalpy
docs: Converts energy to enthalpy.
      
      This function take the energies stored in the energy array and
      converts them to formation enthalpy.
  
      Parameters
      ---------
      energy : list of lists of floats
      
      Returns
      -------
      enthalpy : list of lists containing the enthalpies.