A example of plotting not quite right

An “ugly” example of plotting.

import numpy as np
import matplotlib

matplotlib.use("Agg")
import matplotlib.pyplot as plt

matplotlib.rc("grid", color="black", linestyle="-", linewidth=1)

fig = plt.figure(figsize=(5, 4), dpi=72)
axes = fig.add_axes((0.01, 0.01, 0.98, 0.98), facecolor=".75")
X = np.linspace(0, 2, 40)
Y = np.sin(2 * np.pi * X)
plt.plot(X, Y, lw=0.05, c="b", antialiased=False)

plt.xticks([])
plt.yticks(np.arange(-1.0, 1.0, 0.2))
plt.grid()
ax = plt.gca()

plt.show()