kivy __init__ takes 1 arg - python-3.x

I have a problem with kivy :( Can you help me to fix it?
import kivy
import socket
import threading
kivy.require('1.9.1') # replace with your current kivy version !
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.connect(('localhost',9999))
from kivy.app import App
from kivy.uix.label import Label
duyuru=""
def readData():
data = s.recv(1024)
if data:
duyuru=data
else:
duyuru="Henüz duyuru yok!"
class MyApp(App):
def build(self):
t1 = threading.Thread(target=readData)
t1.start()
return Label(duyuru)
if __name__ == '__main__':
MyApp().run()
It give me an error says:"Type error: __init__ takes 1 positional argument but 2 were given ". And the kivy window opens but stops running :(
Traceback:
[INFO ] [Logger ] Record login
C:\Users\Beatless27\.kivy\logs\kivy_16-05-02_40.txt
[INFO ] [Kivy ] v1.9.1
[INFO ] [Python ] v3.4.4 (v3.4.4:737efcadf5a6, Dec 20 2015, 19:28:18) [MSC v.1600 32 bit (Intel)]
[INFO ] [Factory ] 179 symbols loaded
[INFO ] [Image ] Providers: img_tex, img_dds, img_gif, img_sdl2 (img_pil, img_ffpyplayer ignored)
[INFO ] [Text ] Provider: sdl2
[INFO ] [OSC ] using <thread> for socket
[INFO ] [Window ] Provider: sdl2
[INFO ] [GL ] GLEW initialization succeeded
[INFO ] [GL ] OpenGL version <b'3.3.0'>
[INFO ] [GL ] OpenGL vendor <b'NVIDIA Corporation'>
[INFO ] [GL ] OpenGL renderer <b'GeForce 9500 GT/PCIe/SSE2/3DNOW!'>
[INFO ] [GL ] OpenGL parsed version: 3, 3
[INFO ] [GL ] Shading version <b'3.30 NVIDIA via Cg compiler'>
[INFO ] [GL ] Texture max size <8192>
[INFO ] [GL ] Texture max units <32>
[INFO ] [Window ] auto add sdl2 input provider
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
Traceback (most recent call last):
File "AndroidClient.py", line 29, in <module>
MyApp().run()
File "C:\Python34\lib\site-packages\kivy\app.py", line 802, in run
root = self.build()
File "AndroidClient.py", line 27, in build
return Label(duyuru)
TypeError: __init__() takes 1 positional argument but 2 were given

Use Label(text=duyuru) - it is a keyword argument, not a positional one.

Related

Unable to debug Kivy in PyCharm while run is OK

I have an issue on debugging a Kivy project with PyCahrm.
I'm on Win 10 x64.
Config version 1:
Python: 3.7.9 x64
Kivy: 2.0.0
PyCharm (Community Edition): 2022.1.1
Config version 2:
Python: 3.10.4 x64
Kivy: 2.1.0
PyCharm (Community Edition): 2022.1.1
First, I need to say that with Config version 1 I worked bevor and still have no problems.
What I did:
installed Python 3.10
created new venv
installed Kivy
installed other for my project required packages
added Python Interpreter to the Project in PyCharm
edited Run/Debug configuration to new interpreter in PyCharm
If I just run the project, it works like I expected without any errors, but if I try to debug it, I always get an Exception.
With MS VSCode I'm able to debug the Project, so I assume there is something with my configuration in PyCharm.
This is my console Output while debugging in PyCharm:
[WARNING] [Config ] Older configuration version detected (21 instead of 24)
[WARNING] [Config ] Upgrading configuration in progress.
[DEBUG ] [Config ] Upgrading from 21 to 22
[DEBUG ] [Config ] Upgrading from 22 to 23
[DEBUG ] [Config ] Upgrading from 23 to 24
[INFO ] [Logger ] Record log in C:\Users\x\.kivy\logs\kivy_22-05-30_23.txt
[INFO ] [deps ] Successfully imported "kivy_deps.angle" 0.3.2
[INFO ] [deps ] Successfully imported "kivy_deps.glew" 0.3.1
[INFO ] [deps ] Successfully imported "kivy_deps.sdl2" 0.4.5
[INFO ] [Kivy ] v2.1.0
[INFO ] [Kivy ] Installed at "C:\Projects\My Project\venv310\lib\site-packages\kivy\__init__.py"
[INFO ] [Python ] v3.10.4 (tags/v3.10.4:9d38120, Mar 23 2022, 23:13:41) [MSC v.1929 64 bit (AMD64)]
[INFO ] [Python ] Interpreter at "C:\Projects\My Project\venv310\Scripts\python.exe"
[INFO ] [Logger ] Purge log fired. Processing...
[INFO ] [Logger ] Purge finished!
[INFO ] [Factory ] 189 symbols loaded
[DEBUG ] [Cache ] register <kv.resourcefind> with limit=None, timeout=60
[DEBUG ] [Cache ] register <kv.lang> with limit=None, timeout=None
[DEBUG ] [Cache ] register <kv.image> with limit=None, timeout=60
[DEBUG ] [Cache ] register <kv.atlas> with limit=None, timeout=None
[INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_pil (img_ffpyplayer ignored)
[DEBUG ] [Cache ] register <kv.texture> with limit=1000, timeout=60
[DEBUG ] [Cache ] register <kv.shader> with limit=1000, timeout=3600
[INFO ] [Window ] Provider: sdl2
[INFO ] [GL ] Using the "OpenGL" graphics system
[INFO ] [GL ] GLEW initialization succeeded
[DEBUG ] [GL ] available extensions: b'GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_blend_color GL_EXT_abgr GL_EXT_texture3D GL_EXT_clip_volume_hint GL_EXT_compiled_vertex_array GL_SGIS_texture_edge_clamp GL_SGIS_generate_mipmap GL_EXT_draw_range_elements GL_SGIS_texture_lod GL_EXT_rescale_normal GL_EXT_packed_pixels GL_EXT_texture_edge_clamp GL_EXT_separate_specular_color GL_ARB_multitexture GL_ARB_map_buffer_alignment GL_ARB_conservative_depth GL_EXT_texture_env_combine GL_EXT_bgra GL_EXT_blend_func_separate GL_EXT_secondary_color GL_EXT_fog_coord GL_EXT_texture_env_add GL_ARB_texture_cube_map GL_ARB_transpose_matrix GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_ARB_texture_env_add GL_IBM_texture_mirrored_repeat GL_ARB_texture_mirrored_repeat GL_EXT_multi_draw_arrays GL_SUN_multi_draw_arrays GL_NV_blend_square GL_ARB_texture_compression GL_3DFX_texture_compression_FXT1 GL_EXT_texture_filter_anisotropic GL_ARB_texture_border_clamp GL_ARB_point_parameters GL_ARB_texture_env_combine GL_ARB_texture_env_dot3 GL_ARB_texture_env_crossbar GL_EXT_texture_compression_s3tc GL_ARB_shadow GL_ARB_window_pos GL_EXT_shadow_funcs GL_EXT_stencil_wrap GL_ARB_vertex_program GL_EXT_texture_rectangle GL_ARB_fragment_program GL_EXT_stencil_two_side GL_ATI_separate_stencil GL_ARB_vertex_buffer_object GL_EXT_texture_lod_bias GL_ARB_occlusion_query GL_ARB_fragment_shader GL_ARB_shader_objects GL_ARB_shading_language_100 GL_ARB_texture_non_power_of_two GL_ARB_vertex_shader GL_NV_texgen_reflection GL_ARB_point_sprite GL_ARB_fragment_program_shadow GL_EXT_blend_equation_separate GL_ARB_depth_texture GL_ARB_texture_rectangle GL_ARB_draw_buffers GL_ARB_color_buffer_float GL_ARB_half_float_pixel GL_ARB_texture_float GL_ARB_pixel_buffer_object GL_ARB_texture_barrier GL_EXT_framebuffer_object GL_ARB_draw_instanced GL_ARB_half_float_vertex GL_ARB_occlusion_query2 GL_EXT_draw_buffers2 GL_WIN_swap_hint GL_EXT_texture_sRGB GL_ARB_multisample GL_EXT_packed_float GL_EXT_texture_shared_exponent GL_ARB_texture_rg GL_ARB_texture_compression_rgtc GL_NV_conditional_render GL_ARB_texture_swizzle GL_EXT_texture_swizzle GL_ARB_texture_gather GL_ARB_sync GL_ARB_cl_event GL_ARB_framebuffer_sRGB GL_EXT_packed_depth_stencil GL_ARB_depth_buffer_float GL_EXT_transform_feedback GL_ARB_transform_feedback2 GL_ARB_draw_indirect GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_ARB_framebuffer_object GL_ARB_framebuffer_no_attachments GL_EXT_texture_array GL_EXT_texture_integer GL_ARB_map_buffer_range GL_ARB_texture_buffer_range GL_EXT_texture_snorm GL_ARB_blend_func_extended GL_INTEL_performance_query GL_ARB_copy_buffer GL_ARB_sampler_objects GL_NV_primitive_restart GL_ARB_seamless_cube_map GL_ARB_seamless_cubemap_per_texture GL_ARB_uniform_buffer_object GL_ARB_depth_clamp GL_ARB_vertex_array_bgra GL_ARB_shader_bit_encoding GL_ARB_draw_buffers_blend GL_ARB_geometry_shader4 GL_EXT_geometry_shader4 GL_ARB_texture_query_lod GL_ARB_explicit_attrib_location GL_ARB_draw_elements_base_vertex GL_EXT_shader_integer_mix GL_ARB_instanced_arrays GL_ARB_base_instance GL_ARB_fragment_coord_conventions GL_EXT_gpu_program_parameters GL_ARB_texture_buffer_object_rgb32 GL_ARB_compatibility GL_ARB_texture_rgb10_a2ui GL_ARB_texture_multisample GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_vertex_type_10f_11f_11f_rev GL_ARB_timer_query GL_EXT_timer_query GL_ARB_tessellation_shader GL_ARB_vertex_array_object GL_ARB_provoking_vertex GL_ARB_sample_shading GL_ARB_texture_cube_map_array GL_EXT_gpu_shader4 GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_INTEL_fragment_shader_ordering GL_ARB_fragment_shader_interlock GL_ARB_clip_control GL_ARB_shader_subroutine GL_ARB_transform_feedback3 GL_ARB_get_program_binary GL_ARB_separate_shader_objects GL_ARB_shader_precision GL_ARB_vertex_attrib_64bit GL_ARB_viewport_array GL_ARB_transform_feedback_instanced GL_ARB_compressed_texture_pixel_storage GL_ARB_shader_atomic_counters GL_ARB_shading_language_packing GL_ARB_shader_image_load_store GL_ARB_shading_language_420pack GL_ARB_texture_storage GL_EXT_texture_storage GL_ARB_compute_shader GL_ARB_vertex_attrib_binding GL_ARB_texture_view GL_ARB_fragment_layer_viewport GL_ARB_multi_draw_indirect GL_ARB_program_interface_query GL_ARB_shader_image_size GL_ARB_shader_storage_buffer_object GL_ARB_texture_storage_multisample GL_ARB_buffer_storage GL_AMD_vertex_shader_layer GL_AMD_vertex_shader_viewport_index GL_ARB_query_buffer_object GL_EXT_polygon_offset_clamp GL_ARB_clear_texture GL_ARB_texture_mirror_clamp_to_edge GL_ARB_debug_output GL_ARB_enhanced_layouts GL_KHR_debug GL_ARB_arrays_of_arrays GL_ARB_texture_query_levels GL_ARB_invalidate_subdata GL_ARB_clear_buffer_object GL_INTEL_map_texture GL_ARB_texture_compression_bptc GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility GL_ARB_robustness GL_ARB_robust_buffer_access_behavior GL_EXT_texture_sRGB_decode GL_ARB_copy_image GL_KHR_blend_equation_advanced GL_EXT_direct_state_access GL_ARB_stencil_texturing GL_ARB_texture_stencil8 GL_ARB_explicit_uniform_location GL_ARB_multi_bind GL_ARB_indirect_parameters '
[DEBUG ] [GL ] glShaderBinary is not available
[INFO ] [GL ] Backend used <glew>
[INFO ] [GL ] OpenGL version <b'4.3.0 - Build 20.19.15.5126'>
[INFO ] [GL ] OpenGL vendor <b'Intel'>
[INFO ] [GL ] OpenGL renderer <b'Intel(R) HD Graphics 4600'>
[INFO ] [GL ] OpenGL parsed version: 4, 3
[INFO ] [GL ] Shading version <b'4.30 - Build 20.19.15.5126'>
[INFO ] [GL ] Texture max size <16384>
[INFO ] [GL ] Texture max units <32>
[DEBUG ] [Shader ] Fragment compiled successfully
[DEBUG ] [Shader ] Vertex compiled successfully
[DEBUG ] [ImageSDL2 ] Load <C:\Projects\My Project\venv310\lib\site-packages\kivy\data\glsl\default.png>
[INFO ] [Window ] auto add sdl2 input provider
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
[WARNING] Both Window.minimum_width and Window.minimum_height must be bigger than 0 for the size restriction to take effect.
[INFO ] [Text ] Provider: sdl2
[INFO ] [Clipboard ] Provider: winctypes
Traceback (most recent call last):
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 883, in exec_module
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "C:\Projects\My Project\src\My_App.py", line 27, in <module>
import doctodb.sql_utils as slq_utils # sqlite3 & Co.
File "C:\Projects\My Project\src\doctodb\sql_utils.py", line 14, in <module>
import my_globals
File "C:\Projects\My Project\src\my_globals.py", line 12, in <module>
from kivy.app import App
File "C:\Projects\My Project\venv310\lib\site-packages\kivy\app.py", line 414, in <module>
from os.path import dirname, join, exists, sep, expanduser, isfile
ImportError: cannot import name 'sep' from 'ntpath' (C:\Python\Python310\lib\ntpath.py)
Exception ignored in: <module 'threading' from 'C:\\Python\\Python310\\lib\\threading.py'>
Traceback (most recent call last):
File "C:\Python\Python310\lib\threading.py", line 1560, in _shutdown
lock.acquire()
KeyboardInterrupt:
Process finished with exit code 1
Any idea what could I try to solve this?

Kivy error while running : TypeError: run() missing 1 required positional argument: 'self'

I was just watching a tutorial on kivy and for some reason my code won't work as the person teaching
import kivy
from kivy.app import App as App
from kivy.uix.label import Label
class myapp(App) :
def build(self):
return Label(text = "Hello world")
if __name__ == '__main__':
myapp.run()
thats the code and
[INFO ] [Logger ] Record log in C:\Users\Maza\.kivy\logs\kivy_21-10-13_21.txt
[INFO ] [deps ] Successfully imported "kivy_deps.gstreamer" 0.3.2
[INFO ] [deps ] Successfully imported "kivy_deps.angle" 0.3.0
[INFO ] [deps ] Successfully imported "kivy_deps.glew" 0.3.0
[INFO ] [deps ] Successfully imported "kivy_deps.sdl2" 0.3.1
[INFO ] [Kivy ] v2.0.0
[INFO ] [Kivy ] Installed at "C:\Users\Maza\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\__init__.py"
[INFO ] [Python ] v3.9.7 (tags/v3.9.7:1016ef3, Aug 30 2021, 20:19:38) [MSC v.1929 64 bit (AMD64)]
[INFO ] [Python ] Interpreter at "C:\Users\Maza\AppData\Local\Programs\Python\Python39\python.exe"
[INFO ] [Factory ] 186 symbols loaded
[INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_pil (img_ffpyplayer ignored)
[INFO ] [Text ] Provider: sdl2
Traceback (most recent call last):
File "c:\Users\xxx\Documents\Projects\Python playground\Kivy\test1.py", line 12, in <module>
myapp.run()
TypeError: run() missing 1 required positional argument: 'self'
that's what it returned. I still dont know how to fix it
You need to change:
myapp.run()
to:
myapp().run()
That is, you must create an instance of myapp (the myapp() with parens), then call the run() method of that instance.

Running Kivy1.11 (Py3.6 with SDL2) in VSCode

I'm trying to debug my GUI in VSCode(1.39.1) using kivy1.11, python3.6.9 and Win10, but VSCode cannot compile.
I installed the kivy-package according to the official Kivy-page within conda. I tested whether this outside VSCode and started it in a terminal. This works:
(kivy_py36) C:\Users\...\RASPIapp_py3>python main.py
[INFO ] [Logger ] Record log in C:\Users\...\.kivy\logs\kivy_19-10-16_6.txt
[INFO ] [Kivy ] v1.11.1
[INFO ] [Kivy ] Installed at "C:\Users\...\Anaconda3\envs\kivy_py36\lib\site-packages\kivy\__init__.py"
[INFO ] [Python ] v3.6.9 |Anaconda, Inc.| (default, Jul 30 2019, 14:00:49) [MSC v.1915 64 bit (AMD64)]
[INFO ] [Python ] Interpreter at "C:\Users\...\Anaconda3\envs\kivy_py36\python.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'4.5.0 - Build 25.20.100.6472'>
[INFO ] [GL ] OpenGL vendor <b'Intel'>
[INFO ] [GL ] OpenGL renderer <b'Intel(R) HD Graphics 630'>
[INFO ] [GL ] OpenGL parsed version: 4, 5
[INFO ] [GL ] Shading version <b'4.50 - Build 25.20.100.6472'>
[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
But when I try the same environment within VSCode, I get this:
[INFO ] [Logger ] Record log in C:\Users\...\.kivy\logs\kivy_19-10-16_1.txt
[INFO ] [Kivy ] v1.11.1
[INFO ] [Kivy ] Installed at "C:\Users\...\Anaconda3\envs\kivy_py36\lib\site-packages\kivy\__init__.py"
[INFO ] [Python ] v3.6.9 |Anaconda, Inc.| (default, Jul 30 2019, 14:00:49) [MSC v.1915 64 bit (AMD64)]
[INFO ] [Python ] Interpreter at "C:\Users\...\Anaconda3\envs\kivy_py36\python.exe"
[INFO ] [Factory ] 184 symbols loaded
[INFO ] [Image ] Providers: img_tex, img_dds, img_gif (img_sdl2, img_pil, img_ffpyplayer ignored)
[CRITICAL] [Text ] Unable to find any valuable Text provider. Please enable debug logging (e.g. add -d if running from the command line, or change the log level in the config) and re-run your app to identify potential causes
sdl2 - ImportError: DLL load failed: Das angegebene Modul wurde nicht gefunden.
File "C:\Users\...\Anaconda3\envs\kivy_py36\lib\site-packages\kivy\core\__init__.py", line 63, in core_select_lib
fromlist=[modulename], level=0)
File "C:\Users\...\Anaconda3\envs\kivy_py36\lib\site-packages\kivy\core\text\text_sdl2.py", line 13, in <module>
from kivy.core.text._text_sdl2 import (_SurfaceContainer, _get_extents,
pil - ImportError: DLL load failed: Das angegebene Modul wurde nicht gefunden.
File "C:\Users\...\Anaconda3\envs\kivy_py36\lib\site-packages\kivy\core\__init__.py", line 63, in core_select_lib
fromlist=[modulename], level=0)
File "C:\Users\...\Anaconda3\envs\kivy_py36\lib\site-packages\kivy\core\text\text_pil.py", line 7, in <module>
from PIL import Image, ImageFont, ImageDraw
File "C:\Users\...\Anaconda3\envs\kivy_py36\lib\site-packages\PIL\Image.py", line 95, in <module>
from . import _imaging as core
[CRITICAL] [App ] Unable to get a Text provider, abort.
The standard ".kivy/config.ini" was not changed in both cases.
Some installed packages of py36 are:
cython 0.29.13 py36ha925a31_0
…
kivy 1.11.1 py36hbc14df2_0 conda-forge
kivy-examples 1.11.1 pypi_0 pypi
…
pillow 6.1.0 py36h643dfcc_1 conda-forge
…
python 3.6.9 h5500b2f_0
…sdl2 2.0.10 h6538335_0 conda-forge
sdl2_image 2.0.5 h63225fd_0 conda-forge
sdl2_mixer 2.0.4 h6538335_0 conda-forge
sdl2_ttf 2.0.15 h4636d2b_0 conda-forge
and some of py27:
cython 0.27.3 py27h566c365_0
…
kivy 1.10.1 py27h7bc4a79_2 conda-forge
kivy-deps-glew 0.1.10 pypi_0 pypi
kivy-deps-sdl2 0.1.18 pypi_0 pypi
...
pillow 6.1.0 py27h6202ca7_0 conda-forge
…
python 2.7.13 h1b6d89f_16
...
sdl2 2.0.9 hc56fc5f_2 conda-forge
sdl2_image 2.0.5 h4bcde91_0 conda-forge
sdl2_mixer 2.0.1 hc56fc5f_1 conda-forge
sdl2_ttf 2.0.15 hdbef25a_0 conda-forge
This is the animate.py example from kivy-examples.
import kivy
from kivy.animation import Animation
from kivy.app import App
from kivy.uix.button import Button
class TestApp(App):
def animate(self, instance):
animation = Animation(pos=(100, 100), t='out_bounce')
animation += Animation(pos=(200, 100), t='out_bounce')
animation &= Animation(size=(500, 500))
animation += Animation(size=(100, 50))
animation.start(instance)
def build(self):
button = Button(size_hint=(None, None), text='plop',
on_press=self.animate)
return button
if __name__ == '__main__':
TestApp().run()
So I expected it to work in vscode, but it does only work in a terminal. So my question: How to force VSCode to find and use SDL2?
Funnily, if I try the same thing as above with Kivy and Python2.7(!), it works in VSCode and terminal.
After playing around with VSCode and finding this helpful link, I finally changed:
1) user -> settings.json
"terminal.integrated.shell.windows": "C:\\WINDOWS\\System32\\cmd.exe",
2) if a workspace with different folders is used (as in my case) -> change ".code-workspace"
"folders": [
{
"name": "RASPIapp_py3",
"path": "C:\\Users\\<YOURPATH>\\RASPIapp_py3",
"python.pythonPath": "C:\\Users\\<YOURUSERNAME>\\Anaconda3\\envs\\<YOURENVNAME>\\python.exe",
"terminal.integrated.shellArgs.windows": [
"/K",
"C:\\Users\\<YOURUSERNAME>\\Anaconda3\\Scripts\\activate.bat",
"C:\\Users\\<YOURUSERNAME>\\Anaconda3"
]
}
No I just wonder why it was able to find kivy in the first place, even though it seems the only problem was that the conda-shell was not probabley activated.

Getting a blank screen on kivy

Following a basic tutorial on kivy, tried running it but the kivy window that pops up is blank, .kv file is in lowercase, so no problems there I guess. Searched all over for a solution but am getting nothing
Installed all the packages correctly, double-checked kv file
#main.py#
import kivy
kivy.require('1.10.0')
from kivy.app import App
from kivy.uix.widget import Widget
class CustomWidget(Widget):
pass
class CustomWidgetApp(App):
def build(self):
return CustomWidget()
customWidget = CustomWidgetApp()
customWidget.run()
customwidget.kv:
#customwidget.kv#
<CustButton#Button>:
font_size: 32
color: 0, 0, 0, 1
size: 150, 50
background_normal: ''
background_down: 'bkgrd-down-color.png'
background_color: .88, .88, .88, 1
<CustomWidget>:
CustButton:
text: "Random"
pos: root.x, 200
CustButton:
text: "Buttons"
pos: 200, root.y
CustButton:
text: "Buttons"
pos: 200, 400
Expecting a window with 3 buttons
Logs if it helps:
[INFO ] [Logger ] Record log in
C:\Users\----\AppData\Roaming\SPB_16.6\.kivy\logs\kivy_19-01-11_28.txt
[INFO ] [Kivy ] v1.10.1
[INFO ] [Python ] v3.6.1 (v3.6.1:69c0db5, Mar 21 2017, 18:41:36) [MSC
v.1900 64 bit (AMD64)]
[INFO ] [Factory ] 194 symbols loaded
[INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_pil,
img_gif (img_ffpyplayer ignored)
[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'4.6.0 NVIDIA 398.72'>
[INFO ] [GL ] OpenGL vendor <b'NVIDIA Corporation'>
[INFO ] [GL ] OpenGL renderer <b'GeForce GTX 1070/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

kivy doesn't display window on linux ubuntu

I installed kivy with:
sudo apt-get install python3-kivy
When I run a simple hello world button program from the terminal, it does not display a window, but it doesn't show an error message either. What should I do?
my code:
import kivy
from kivy.app import App
from kivy.uix.button import Button
class Sample(App):
def build(self):
return Button(text='Hello World')
Sample().run()
P.S. Python 3.6.5, kivy 1.9.1
Edit: as #khaled khalil suggested, i tried the solution.
Terminal output:
[INFO ] [Logger ] Record log in /home/shamildacoder/.kivy/logs/kivy_18-07-18_1.txt
[INFO ] [Kivy ] v1.9.1
[INFO ] [Python ] v3.6.5 (default, Apr 1 2018, 05:46:30)
[GCC 7.3.0]
[INFO ] [Factory ] 179 symbols loaded
[DEBUG ] [Cache ] register <kv.lang> with limit=None, timeout=None
[DEBUG ] [Cache ] register <kv.image> with limit=None, timeout=60
[DEBUG ] [Cache ] register <kv.atlas> with limit=None, timeout=None
[INFO ] [Image ] Providers: img_tex, img_dds, img_gif, img_sdl2, img_pil (img_ffpyplayer ignored)
[DEBUG ] [Cache ] register <kv.texture> with limit=1000, timeout=60
[DEBUG ] [Cache ] register <kv.shader> with limit=1000, timeout=3600
[INFO ] [Text ] Provider: sdl2
[DEBUG ] [App ] Loading kv <./hi.kv>
[DEBUG ] [App ] kv <./hi.kv> not found
[DEBUG ] [Window ] Ignored <egl_rpi> (import error)
[INFO ] [OSC ] using <multiprocessing> for socket
[INFO ] [Window ] Provider: sdl2(['window_egl_rpi'] ignored)
[DEBUG ] [Window ] Ignored <x11> (import error)
[CRITICAL] [Window ] Unable to find any valuable Window provider at all!
egl_rpi - ImportError: cannot import name 'bcm'
File "/usr/lib/python3/dist-packages/kivy/core/__init__.py", line 59, in core_select_lib
fromlist=[modulename], level=0)
File "/usr/lib/python3/dist-packages/kivy/core/window/window_egl_rpi.py", line 12, in <module>
from kivy.lib.vidcore_lite import bcm, egl
sdl2 - TypeError: expected bytes, str found
File "/usr/lib/python3/dist-packages/kivy/core/__init__.py", line 67, in core_select_lib
cls = cls()
File "/usr/lib/python3/dist-packages/kivy/core/window/window_sdl2.py", line 138, in __init__
super(WindowSDL, self).__init__()
File "/usr/lib/python3/dist-packages/kivy/core/window/__init__.py", line 722, in __init__
self.create_window()
File "/usr/lib/python3/dist-packages/kivy/core/window/window_sdl2.py", line 237, in create_window
self.fullscreen, resizable, state)
File "kivy/core/window/_window_sdl2.pyx", line 94, in kivy.core.window._window_sdl2._WindowSDL2Storage.setup_window (kivy/core/window/_window_sdl2.c:2204)
x11 - ModuleNotFoundError: No module named 'kivy.core.window.window_x11'
File "/usr/lib/python3/dist-packages/kivy/core/__init__.py", line 59, in core_select_lib
fromlist=[modulename], level=0)
[CRITICAL] [App ] Unable to get a Window, abort.
Exception ignored in: 'kivy.properties.dpi2px'
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/kivy/utils.py", line 513, in __get__
retval = self.func(inst)
File "/usr/lib/python3/dist-packages/kivy/metrics.py", line 175, in dpi
EventLoop.ensure_window()
File "/usr/lib/python3/dist-packages/kivy/base.py", line 126, in ensure_window
sys.exit(1)
SystemExit: 1
[CRITICAL] [App ] Unable to get a Window, abort.

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