import matplotlib.pyplot as plt from mpl_toolkits.axisartist.axislines import SubplotZero import numpy as np
fig = plt.figure(1, (4, 3))
# a subplot with two additional axis, "xzero" and "yzero". "xzero" is # y=0 line, and "yzero" is x=0 line. ax = SubplotZero(fig, 1, 1, 1) fig.add_subplot(ax)
# make xzero axis (horizontal axis line through y=0) visible. ax.axis["xzero"].set_visible(True) ax.axis["xzero"].label.set_text("Axis Zero")
# make other axis (bottom, top, right) invisible. for n in ["bottom", "top", "right"]: ax.axis[n].set_visible(False)
xx = np.arange(0, 2*np.pi, 0.01) ax.plot(xx, np.sin(xx))