../fingerprints.py:277: RuntimeWarning: overflow encountered in power
  fp = (term4 ** (1000.0* zeta)) * term3
../fingerprints.py:366: RuntimeWarning: invalid value encountered in divide
  fp_pdf /= summ
../fingerprints.py:280: RuntimeWarning: invalid value encountered in multiply
  fp *= 2**(1-1000.0*zeta)
