message: Reset print precision after this example
  otherwise it also affects other random examples
diff: @@ -52,7 +52,12 @@ This small example is also provided
  PersLay
  ^^^^^^^
  -.. testcode::
  +.. testsetup:: perslay
  +
  + import numpy
  + numpy.set_printoptions(precision=5)
  +
  +.. testcode:: perslay
  import numpy as np
  import tensorflow as tf
  @@ -71,10 +76,13 @@ PersLay
  perslay = gdtf.Perslay(phi=phi, weight=weight, perm_op=perm_op, rho=rho)
  vectors = perslay(diagrams)
  - np.set_printoptions(precision=5)
  print(vectors)
  -.. testoutput::
  +.. testcleanup:: perslay
  +
  + numpy.set_printoptions(precision=8)
  +
  +.. testoutput:: perslay
  tf.Tensor(
  [[[[1.72661e-16]
  