message: Use float as it can be ambiguous. Do not work if we remove np.inf value
diff: @@ -60,7 +60,7 @@ of shape (N x 2) encoding a persistence diagram (in a given dimension).
  import matplotlib.pyplot as plt
  import gudhi
  import numpy as np
  - d = np.array([[0, 1], [1, 2], [1, np.inf]])
  + d = np.array([[0., 1.], [1., 2.], [1., np.inf]])
  gudhi.plot_persistence_diagram(d)
  plt.show()
  