Little Help With Graphs

[buran]

just to mention that instead of the two lines on the top

# plot x axis ticks and labels on top
plt.rcParams['xtick.bottom'] = plt.rcParams['xtick.labelbottom'] = False
plt.rcParams['xtick.top'] = plt.rcParams['xtick.labeltop'] = True

you can do

# invert the y axis
plt.gca().invert_yaxis()
plt.gca().xaxis.set_label_position('top')
plt.gca().xaxis.set_ticks_position('top')