我正在追踪tutorials for Kivy,但无法从.kv文件正确加载属性.出于某种原因,有时我可以通过listdir(kv_path)中的for kv拉.kv文件：Builder.load_file(kv_path kv),但是我不能仅仅通过将kv文件放在相同的根目录中并让它“自己导入？”

例如,使用文件时：

main.py

from kivy.app import App

from kivy.uix.label import Label

from kivy.uix.widget import Widget

class Widgets(Widget):

pass

class SimpleKivy3(App):

def build(self):

return Widgets()

if __name__ == "__main__":

SimpleKivy3().run()

SimpleKivy3.kv

:

font_size: 40

size: 170,75

color: 0,1,0,1

:

Button:

pos: root.x, root.top - self.height

text: "Kivy"

Button:

pos: 170,0

text: "Tutorials"

我在终端上获得以下输出：

$python main.py

[INFO ] [Logger ] Record log in /home/nickshu/.kivy/logs/kivy_18-09-12_58.txt

[INFO ] [Kivy ] v1.11.0.dev0, git-038acbf, 20180912

[INFO ] [Python ] v3.6.5 |Anaconda, Inc.| (default, Apr 29 2018, 16:14:56)

[GCC 7.2.0]

[INFO ] [Factory ] 195 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(['window_egl_rpi'] ignored)

[INFO ] [GL ] Using the "OpenGL" graphics system

[INFO ] [GL ] Backend used

[INFO ] [GL ] OpenGL version

[INFO ] [GL ] OpenGL vendor

[INFO ] [GL ] OpenGL renderer

[INFO ] [GL ] OpenGL parsed version: 3, 0

[INFO ] [GL ] Shading version

[INFO ] [GL ] Texture max size <16384>

[INFO ] [GL ] Texture max units <32>

[INFO ] [Window ] auto add sdl2 input provider

[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked

[INFO ] [ProbeSysfs ] device match: /dev/input/event6

[INFO ] [MTD ] Read event from

[INFO ] [Base ] Start application main loop

[INFO ] [MTD ] range position X is 1266 - 5676

[INFO ] [MTD ] range position Y is 1094 - 4762

[INFO ] [MTD ] range touch major is 0 - 0

[INFO ] [MTD ] range touch minor is 0 - 0

[INFO ] [MTD ] range pressure is 0 - 255

[INFO ] [MTD ] axes invertion: X is 0, Y is 0

[INFO ] [MTD ] rotation set to 0

显示以下窗口！

有人知道我在做什么错吗？这些是我对/ dev / input / event6的许可

crwxrwxr-1个root输入13,70 Sep 11 23:47 / dev / input / event6

非常感谢你！