When I create a single plot using the figure()-function of PyPlot, I can set the name of the appearing window using a string as argument:
import matplotlib.p
Taken from the docs:
import matplotlib.pyplot as plt
#...
# Just a figure and one subplot
f, ax = plt.subplots()
ax.plot(x, y)
ax.set_title('Simple plot')
And, to change the title of the Window:
import matplotlib.pyplot as plt
fig = plt.figure()
fig.canvas.set_window_title('My Window Title')
plt.show()