ZeroDivisionError in python-sarviz/sar/viz.py

[nicolas-raoul]

python-sarviz's demo.py crashes on any of my sar files:

Traceback (most recent call last):
  File "demo.py", line 30, in <module>
    main(sys.argv[1], sys.argv[2])
  File "demo.py", line 15, in main
    sar_viz = viz.Visualization(insar.get_sar_info(), paging=True, network=True, disk=True)
  File "/home/nico/src/python-sarviz/sar/viz.py", line 78, in __init__
    self._preprocess_sar_data()
  File "/home/nico/src/python-sarviz/sar/viz.py", line 114, in _preprocess_sar_data
    self.xticks = np.arange(0, tp_count, xtick_label_stepsize)
ZeroDivisionError: division by zero

Debugging shows that both tp_count and xtick_label_stepsize have a value of 0. Setting the parameters of viz.Visualization to false does not solve the problem.

By the way, here is the result of sar -A -f /var/log/sysstat/sa11 (my goal is to have graphs for as many variables as possible):

sar.txt