script.py

import matplotlib.pyplot as plt

semesters = [1, 2, 3, 4, 5, 6, 7, 8]
grades = [9.08, 8.14, 8.43, 7.89, 8.34, 7.55, 7.84, 9.06]

fig, ax = plt.subplots(figsize=(10,8))

ax.plot(semesters, grades, '-o')

ax.set(title="Grades: Venu (U4CSE16508)", 
       xlabel="Semester",
       ylabel="GPA")

for xs, ys in zip(semesters, grades):
  plt.annotate(str(ys), (xs, ys),
               textcoords="offset points",
               xytext=(0,10), ha='right')

#plt.savefig("grades-venu.png")
plt.show()