import tephi
from tephi.constants import default
default["isobar_ticks"] = [1050, 1000, 950, 900, 850, 800, 700, 600, 500, 400, 300, 250, 200, 150, 100, 70, 50, 40, 30, 20, 10]
default["isobar_nbins"] = None