Question

我正在尝试使用spyder IDE（版本3.3.0）执行以下python脚本。我是新手，所以仍然想尝试一下。

from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.uix.gridlayout import GridLayout
from kivy.core.window import Window

Window.size = (200, 100)

class Test_Screen(GridLayout):
    def __init__(self, **kwargs):
        super(Test_Screen, self).__init__(**kwargs)
        self.rows = 2
        test_label = Label(text='Hello, world', color=(1, 0, 0, 1))
        self.add_widget(test_label)
        test_button = Button(text='Button', color=(1, 0, 0, 1))
        self.add_widget(test_button)

class Test_Kivy(App):
    def build(self):
        return Test_Screen()

kivy_object = Test_Kivy()
kivy_object.run()

程序第一次成功运行。但是，当我第二次尝试执行它时，出现错误。下面是在spyder的Console 1/A中看到的第一轮和第二轮的完整屏幕截图。

首次执行（成功运行）：

runfile('D:/SIPRA/Programs/kivy_test.py', wdir='D:/SIPRA/Programs')
[INFO   ] [Logger      ] Record log in C:\Users\SIPRA\.kivy\logs\kivy_18-07-22_68.txt
[INFO   ] [Kivy        ] v1.10.1
[INFO   ] [Python      ] v3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)]
[INFO   ] [Factory     ] 194 symbols loaded
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_sdl2, img_gif (img_pil, img_ffpyplayer ignored)
[INFO   ] [Text        ] Provider: sdl2
[INFO   ] [Window      ] Provider: sdl2
Purge log fired. Analysing...
Purge finished!
[INFO   ] [GL          ] Using the "OpenGL" graphics system
[INFO   ] [GL          ] GLEW initialization succeeded
[INFO   ] [GL          ] Backend used <glew>
[INFO   ] [GL          ] OpenGL version <b'4.6.0 NVIDIA 398.36'>
[INFO   ] [GL          ] OpenGL vendor <b'NVIDIA Corporation'>
[INFO   ] [GL          ] OpenGL renderer <b'GeForce GTX 1080 Ti/PCIe/SSE2'>
[INFO   ] [GL          ] OpenGL parsed version: 4, 6
[INFO   ] [GL          ] Shading version <b'4.60 NVIDIA'>
[INFO   ] [GL          ] Texture max size <32768>
[INFO   ] [GL          ] Texture max units <32>
[INFO   ] [Window      ] auto add sdl2 input provider
[INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
[INFO   ] [Base        ] Start application main loop
[INFO   ] [GL          ] NPOT texture support is available
[INFO   ] [Base        ] Leaving application in progress...

立即执行第二次（引发错误）：

runfile('D:/SIPRA/Programs/kivy_test.py', wdir='D:/SIPRA/Programs')
[INFO   ] [Base        ] Start application main loop
[ERROR  ] [Base        ] No event listeners have been created
[ERROR  ] [Base        ] Application will leave

当我尝试从IDLE执行该代码时，每次都运行相同的代码而没有任何错误。我正在使用Python 3.7 64位，并且我的操作系统是Windows 10（64位）。间谍版本为3.3.0。 Kivy版本为V1.10.1。我已经看过该SO线程中出现的问题-“ Spyder not running Kivy script”，但这是针对较旧版本的spyder的，该错误似乎与我遇到的错误有所不同。因此发布了一个新问题。知道我做错了什么吗？

spyder无法正常运行kivy脚本，但IDLE可以

0 个答案: