ArgumentError：参数 3：<class 'TypeError'>：类型错误答案

【问题标题】：ArgumentError: argument 3: <class 'TypeError'>: wrong typeArgumentError：参数 3：<class 'TypeError'>：类型错误
【发布时间】：2019-07-20 02:49:15
【问题描述】：

我正在通过nimiconda在win10上测试kivy。

每次我第二次运行（在miniconda上按F5，与anaconda相同）kivy代码时，consel都会抛出“ArgumentError：argumentError：argument 3：：错误类型”

我用Miniconda3测试kivy代码（在Anaconda3也测试过，出现同样的问题），每次第一次按F5，代码运行正常，kivy界面正常出现，如下：

runfile('C:/Users/38477/.spyder-py3/temp.py', wdir='C:/Users/38477/.spyder-py3')

[INFO   ] [Logger      ] Record log in C:\Users\38477\.kivy\logs\kivy_19-07-20_1.txt
[INFO   ] [Kivy        ] v1.11.1
[INFO   ] [Kivy        ] Installed at "G:\Miniconda3\lib\site-packages\kivy\__init__.py"
[INFO   ] [Python      ] v3.7.3 (default, Mar 27 2019, 17:13:21) [MSC v.1915 64 bit (AMD64)]
[INFO   ] [Python      ] Interpreter at "G:\Miniconda3\pythonw.exe"
[INFO   ] [Factory     ] 184 symbols loaded
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_sdl2, img_pil, img_gif (img_ffpyplayer ignored)
[INFO   ] [Text        ] Provider: sdl2
[INFO   ] [Window      ] Provider: sdl2
[INFO   ] [GL          ] Using the "OpenGL" graphics system
[INFO   ] [GL          ] GLEW initialization succeeded
[INFO   ] [GL          ] Backend used <glew>
[INFO   ] [GL          ] OpenGL version <b'4.0.0 - Build 10.18.10.4885'>
[INFO   ] [GL          ] OpenGL vendor <b'Intel'>
[INFO   ] [GL          ] OpenGL renderer <b'Intel(R) HD Graphics 4000'>
[INFO   ] [GL          ] OpenGL parsed version: 4, 0
[INFO   ] [GL          ] Shading version <b'4.00 - Build 10.18.10.4885'>
[INFO   ] [GL          ] Texture max size <16384>
[INFO   ] [GL          ] Texture max units <16>
[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   ] [WindowSDL   ] exiting mainloop and closing.
[INFO   ] [Base        ] Leaving application in progress...

但是在关闭kivy界面后，按F5会报如下错误。

runfile('C:/Users/38477/.spyder-py3/temp.py', wdir='C:/Users/38477/.spyder-py3')
[INFO   ] [Base        ] Start application main loop
[ERROR  ] [Base        ] No event listeners have been created
[ERROR  ] [Base        ] Application will leave
[INFO   ] [Base        ] Leaving application in progress...
[INFO   ] [Base        ] Leaving application in progress...
Traceback (most recent call last):

File "<ipython-input-2-83710e3ec7f9>", line 1, in <module>
runfile('C:/Users/38477/.spyder-py3/temp.py', wdir='C:/Users/38477/.spyder-py3')

File"G:\Miniconda3\lib\sitepackages\spyder_kernels\customize\spydercustomize.py", line 827, in runfile
   execfile(filename, namespace)

File "G:\Miniconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 110, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)

 File "C:/Users/38477/.spyder-py3/temp.py", line 15, in <module>
   TestApp().run()

 File "G:\Miniconda3\lib\site-packages\kivy\app.py", line 855, in run
   runTouchApp()

 File "G:\Miniconda3\lib\site-packages\kivy\base.py", line 506, in runTouchApp
   stopTouchApp()

 File "G:\Miniconda3\lib\site-packages\kivy\base.py", line 521, in stopTouchApp
   EventLoop.close()

 File "G:\Miniconda3\lib\site-packages\kivy\base.py", line 172, in close
   self.stop()

 File "G:\Miniconda3\lib\site-packages\kivy\base.py", line 184, in stop
   provider.stop()

 File "G:\Miniconda3\lib\site-packages\kivy\input\providers\wm_pen.py", line 111, in stop
   SetWindowLong_WndProc_wrapper(self.hwnd, self.old_windProc)

 File "G:\Miniconda3\lib\site-packages\kivy\input\providers\wm_common.py", line 122, in _closure
   oldAddr = func(hWnd, GWL_WNDPROC, cast(wndProc, c_void_p).value)

ArgumentError: argument 3: <class 'TypeError'>: wrong type

这是我从https://kivy.org/#home得到的测试代码

from kivy.app import App
from kivy.uix.button import Button

class TestApp(App):
    def build(self):
        return Button(text='Hello World')

TestApp().run()

重启内核是一种可行的方法，但这意味着我每次运行代码后都必须重启内核。正常吗？

环境

active environment : base
active env location : G:\Miniconda3
shell level : 1
user config file : C:\Users\38477\.condarc
populated config files :
conda version : 4.7.9
conda-build version : not installed
python version : 3.7.3.final.0
virtual packages : __cuda=9.1
base environment : G:\Miniconda3  (writable)
           channel URLs : https://repo.anaconda.com/pkgs/main/win-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/win-64
                          https://repo.anaconda.com/pkgs/r/noarch
                          https://repo.anaconda.com/pkgs/msys2/win-64
                          https://repo.anaconda.com/pkgs/msys2/noarch
 package cache : G:\Miniconda3\pkgs
                           C:\Users\38477\.conda\pkgs
                          C:\Users\38477\AppData\Local\conda\conda\pkgs
       envs directories : G:\Miniconda3\envs
                          C:\Users\38477\.conda\envs
                          C:\Users\38477\AppData\Local\conda\conda\envs
platform : win-64
user-agent : conda/4.7.9 requests/2.21.0 CPython/3.7.3 Windows/10 Windows/10.0.17134
administrator : False
netrc file : None
offline mode : False

【问题讨论】：

听起来这可能是在之前的应用关闭后在同一进程中重新运行应用所产生的错误。这是一个错误，它不起作用，但它没有被使用太多，所以这可能已经溜走了。每次尝试使用新环境。

标签： python anaconda kivy

【解决方案1】：

我曾经遇到过同样的问题，如果您使用的是 spyder，您有 3 个选项来解决它：

1.每次要运行代码时关闭并再次打开spyder

2.Consotools>preferences>run>在外部系统终端中执行，然后单击确定。（按 F5 运行）

3.Consoles>使用F5或F9运行应用前的“重启内核”

【讨论】：

【解决方案2】：

您不能每次都在同一个 python 执行中运行 Kivy 应用程序，这就是您需要重新启动内核的原因。我没有使用过 miniconda，但我假设您使用过 Spyder。要在 Spyder 中顺利运行 Kivy 应用程序，您可以在外部系统中启用执行。
转到工具>>首选项。在首选项对话框中，转到“运行”选项卡并启用“在外部系统终端中执行”。
或者您可以在每次执行之前重新启动内核。我想这会令人不安。
我希望它有所帮助。

【讨论】：