rotate yticks

Question

Using below statement, xticks is by default rotated but how to rotate yticks ?
dataframe.plot(rot = 45)

In the official document only the folloowing is mentioned but not clearly.

rot : int, default None
Rotation for ticks (xticks for vertical, yticks for horizontal plots)

Answer 1

x=[ s, o, m, e]
y=[ v, a, l, s]

matplotlib.pyplot(x, y)
matplotlib.pyplot.xticks(rotation =45)
matplotlib.pyplot.yticks( rotation=45)
matplotlib.pyplot.show()

now both thicks are rotated by 45 degrees.