kivy: Kivy not working after installation

I was installing kivy for the first time: python -m pip install --upgrade pip wheel setuptools

python -m pip install docutils pygments pypiwin32 kivy.deps.sdl2 kivy.deps.glew \ kivy.deps.gstreamer --extra-index-url https://kivy.org/downloads/packages/simple/

python -m pip install kivy

but after i run:

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

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

TestApp().run()

i would get

C:\Python27\python.exe "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 5.0.4\helpers\pycharm\utrunner.py" "C:\- Python_projekti\python_GUI_testiranje\testiranje.py" true
Testing started at 19:33 ...
[INFO              ] [Logger      ] Record log in C:\Users\Kyte\.kivy\logs\kivy_16-03-24_4.txt
[INFO              ] [Kivy        ] v1.9.1
[INFO              ] [Python      ] v2.7.11 (v2.7.11:6d1b6a68f775, Dec  5 2015, 20:32:19) [MSC v.1500 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 <4.5.13399 Compatibility Profile Context 15.201.1151.1008>
[INFO              ] [GL          ] OpenGL vendor <ATI Technologies Inc.>
[INFO              ] [GL          ] OpenGL renderer <AMD Radeon R7 200 Series>
[INFO              ] [GL          ] OpenGL parsed version: 4, 5
[INFO              ] [GL          ] Shading version <4.40>
[INFO              ] [GL          ] Texture max size <16384>
[INFO              ] [GL          ] Texture max units <32>
[WARNING           ] [Image       ] Unable to load image <C:\Python27\lib\site-packages\kivy\data\glsl\default.png>
[CRITICAL          ] [Window      ] Unable to find any valuable Window provider at all!
sdl2 - Exception: SDL2: Unable to load image
  File "C:\Python27\lib\site-packages\kivy\core\__init__.py", line 67, in core_select_lib
    cls = cls()
  File "C:\Python27\lib\site-packages\kivy\core\window\window_sdl2.py", line 138, in __init__
    super(WindowSDL, self).__init__()
  File "C:\Python27\lib\site-packages\kivy\core\window\__init__.py", line 722, in __init__
    self.create_window()
  File "C:\Python27\lib\site-packages\kivy\core\window\window_sdl2.py", line 255, in create_window
    super(WindowSDL, self).create_window()
  File "C:\Python27\lib\site-packages\kivy\core\window\__init__.py", line 897, in create_window
    self.render_context = RenderContext()
  File "kivy\graphics\instructions.pyx", line 756, in kivy.graphics.instructions.RenderContext.__init__ (kivy\graphics\instructions.c:10729)
  File "C:\Python27\lib\site-packages\kivy\core\image\__init__.py", line 512, in __init__
    self.filename = arg
  File "C:\Python27\lib\site-packages\kivy\core\image\__init__.py", line 700, in _set_filename
    mipmap=self._mipmap, nocache=self._nocache)
  File "C:\Python27\lib\site-packages\kivy\core\image\__init__.py", line 430, in load
    im = loader(filename, **kwargs)
  File "C:\Python27\lib\site-packages\kivy\core\image\__init__.py", line 198, in __init__
    self._data = self.load(filename)
  File "C:\Python27\lib\site-packages\kivy\core\image\img_sdl2.py", line 42, in load
    raise Exception('SDL2: Unable to load image')

[CRITICAL          ] [App         ] Unable to get a Window, abort.
 Exception SystemExit: 1 in 'kivy.properties.dpi2px' ignored
[CRITICAL          ] [App         ] Unable to get a Window, abort.

Process finished with exit code 1

and i went to kivy IRC for help. two guys helped me out. i did: python -m pip uninstall pillow python -m pip install --use-wheel pillow

and after that i would run my app, but with some modification and it is working now

import os
os.environ['KIVY_IMAGE'] = 'pil,sdl2'
from kivy.app import App
from kivy.uix.button import Button

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

TestApp().run()

One more time thank to quanon and kived from the IRC channel. They are the best 😃