8000 Pressing "enter" or "numpad enter" within a TextBox has no effect when using the WxAgg backend · Issue #15328 · matplotlib/matplotlib · GitHub
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Pressing "enter" or "numpad enter" within a TextBox has no effect when using the WxAgg backend #15328

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MartyMacGyver opened this issue Sep 23, 2019 · 3 comments
Closed

Pressing "enter" or "numpad enter" within a TextBox has no effect when using the WxAgg backend #15328

MartyMacGyver opened this issue Sep 23, 2019 · 3 comments
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GUI: wx OS: Microsoft status: duplicate

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@MartyMacGyver
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Bug report

Bug summary

Pressing "enter" or "numpad enter" within a TextBox has no effect when using the WxAgg backend

Code for reproduction

# Based on https://matplotlib.org/3.1.1/gallery/widgets/textbox.html

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.widgets import TextBox
import matplotlib as mpl

#mpl.use('TkAgg')  # Enter and numpad enter work fine
#mpl.use('Qt5Agg')  # Enter and numpad enter work fine
mpl.use('WxAgg')  # Neither enter nor numpad enter work

fig, ax = plt.subplots()
plt.subplots_adjust(bottom=0.2)
t = np.arange(-2.0, 2.0, 0.001)
s = t ** 2
initial_text = "t ** 2"
l, = plt.plot(t, s, lw=2)

def submit(text):
    print(text)
    plt.draw()

axbox = plt.axes([0.1, 0.05, 0.8, 0.075])
text_box = TextBox(axbox, 'Evaluate', initial=initial_text)
text_box.on_submit(submit)

plt.show()

Actual outcome

With the TkAgg and Qt5Agg backends, pressing "enter" or "numpad enter" within a TextBox work as expected (you see the printed value of the box text in the console).

With the WxAgg backend you can enter/delete characters but the enter keys have no effect.

Expected outcome

The enter keys should work equally well in all of these backends.

Note: Clicking into and then out of the TextBox still works regardless of the backend chosen

Matplotlib version

  • Operating system: Windows 10
  • Matplotlib version: 3.1.1
  • Matplotlib backend (print(matplotlib.get_backend())): See above - problem is with WxAgg
  • Python version: 3.7.4
  • Jupyter version (if applicable): n/a
  • Other libraries: WxPython 4.0.6

Installed via pip.
@anntzer
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anntzer commented Sep 23, 2019

possibly related to #15177?

@anntzer
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anntzer commented Sep 25, 2019

Indeed, this is a duplicate of #8249 and likewise fixed by #15177. Thanks for the report :)

@anntzer anntzer closed this as completed Sep 25, 2019
@MartyMacGyver
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Interesting. This appears to be a pretty old bug then..

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