Unable to remove legend box [python]

Question

So I need to make this plot in python. I wish to remove my legend's border. However, when I tried the different solutions other posters made, they were unable to work with mine. Please help.

This doesn't work:

plt.legend({'z$\sim$0.35', 'z$\sim$0.1','z$\sim$1.55'})
plt.legend(frameon=False)

---

plt.legend({'z$\sim$0.35', 'z$\sim$0.1','z$\sim$1.55'})
plt.legend.get_frame().set_linewidth(0.0)

---

plt.legend({'z$\sim$0.35', 'z$\sim$0.1','z$\sim$1.55'}, 'Box', 'off')

Additionally, when I plotted, I imported two different files and graphed them with a line and with circles respectively. How could I put a line or a circle within the legend key?

The plot:

Answer 1

It's very strange because the command :

plt.legend(frameon=False)

Should work very well. You can also try this command, to compare :

plt.legend(frameon=None)

You can also read the documentation on this page about plt.legend

I scripted something as example to you :

import numpy as np
import matplotlib.pyplot as plt


x = np.array([0,4,8,13])
y = np.array([0,1,2,3])

fig1, ((ax1, ax2)) = plt.subplots(1, 2)

ax1.plot(x,y, label=u'test')
ax1.legend(loc='upper left', frameon=False)

ax2.plot(x,y, label=u'test2')
ax2.legend(loc='upper left', frameon=None)

plt.show()