Version 3.1.2
matplotlib

Related Topics

Keypress DemoΒΆ

Show how to connect to keypress events

Traceback (most recent call last):
  File "/build/matplotlib-tq5J6U/matplotlib-3.1.2/examples/event_handling/keypress_demo.py", line 1
    =============
    ^
SyntaxError: invalid syntax
=============
Keypress Demo
=============

Show how to connect to keypress events
"""
import sys
import numpy as np
import matplotlib.pyplot as plt


def press(event):
    print('press', event.key)
    sys.stdout.flush()
    if event.key == 'x':
        visible = xl.get_visible()
        xl.set_visible(not visible)
        fig.canvas.draw()

# Fixing random state for reproducibility
np.random.seed(19680801)


fig, ax = plt.subplots()

fig.canvas.mpl_connect('key_press_event', press)

ax.plot(np.random.rand(12), np.random.rand(12), 'go')
xl = ax.set_xlabel('easy come, easy go')
ax.set_title('Press a key')
plt.show()

Keywords: matplotlib code example, codex, python plot, pyplot Gallery generated by Sphinx-Gallery