code: def load_coef(filename):
      
      
      with open(filename) as f: 
          lines = f.readlines()
  
          lst = lines[0].split(',')
  
          nmax = int(lst[0])
          mmax = int(lst[1])
  
          L = (nmax + 1) + mmax * (2 * nmax - mmax + 1);
  
          vec = np.zeros(L, dtype=np.complex128)
     
          lines.pop(0)
  
          for n, line in enumerate(lines):
              lst = line.split(',')
              re = float(lst[0])
              im = float(lst[1])
              vec[n] = re + 1j * im
  
      return sp.ScalarCoefs(vec, nmax, mmax)
docs: Loads a file that was saved with save_coef.