Matplotlib keyboard event

# //TL;DR////
fig.canvas.mpl_connect('key_press_event', lambda e: print(f"the key '{e.key}' was pressed" ))
#/////

import matplotlib.pyplot as plt
import numpy as np

def on_press(event):
    if event.key == 'h':
        leg.set_visible(not leg.get_visible())
        plt.draw()

fig, ax1=plt.subplots()
t = np.linspace(0, 1)
for i in range(4):
    y1 = (2+i*2) * np.sin(2*np.pi*pow(2,i)*t)
    ax1.plot(t, y1, lw=2, label= f'{i+1} HZ')

leg=ax1.legend(loc="upper left")
fig.canvas.mpl_connect('key_press_event', on_press)
plt.title("press 'h' to hide legend")
plt.show()

Similar codes

0 vote111 views2 answers
Call shell script from python
Python
5 votes97 views6 answers
Pytube python
Python
17 votes107 views10 answers
Time
Python
0 vote106 views1 answer
Dynamically created queryset for PrimaryKeyRelatedField in drf
Python
0 vote113 views1 answer
Call a function with prameters inm tkinter buttion
Python
0 vote103 views1 answer
F2 polar or nonpolar
Python
3 votes113 views1 answer
No module named 'django.core.urlresolvers'
Python
1 vote115 views1 answer
File handling modes in python
Python
0 vote60 views1 answer
Tkinter fixed window size
Python
9 votes55 views1 answer
How to delete everything in a text file python
Python