PySDL2 works on Ubuntu desktop but not Rasbperry Pi (Rasbparian), have followed same steps

SDL Development
1

My python project works fine on my Ubuntu desktop, but not on my Raspberry Pi (under Raspbarian) despite having followed the same steps.

I have followed the instructions at https://pysdl2.readthedocs.io/en/rel_0_9_6/install.html, making sure SDL2 is installed using “sudo apt-get install libsdl2-dev”, and then downloading the PySDL2 archive and running “sudo python setup.py install”.

On the Raspberry Pi I get the following error:

File “/home/pi/Documents/tv/test2.py” line 3, in
import sdl2
ImportError: No module named 'sdl2’

Here is my code for test2.py, modified from the following link (I just added some VLC stuff) https://pysdl2.readthedocs.io/en/rel_0_9_6/modules/sdl2.html;

import sys
import ctypes
from sdl2 import *

#VLC stuff
import vlc


def main():
    SDL_Init(SDL_INIT_VIDEO)
    window = SDL_CreateWindow(b"Hello World",
                              SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
                              592, 460, SDL_WINDOW_SHOWN)
    windowsurface = SDL_GetWindowSurface(window)

    image = SDL_LoadBMP(b"exampleimage.bmp")
    SDL_BlitSurface(image, None, windowsurface, None)

    SDL_UpdateWindowSurface(window)
    SDL_FreeSurface(image)

    #VLC stuff
    vlcInstance = vlc.Instance("--no-xlib")
    player = vlcInstance.media_player_new()

    #Xwindow ID stuff
    wminfo = SDL_SysWMinfo();
    SDL_GetVersion(wminfo.version);
    if(SDL_GetWindowWMInfo(window, wminfo) == 0):
        print("can't get SDL WM info");
        sys.exit(1);
    win_id = wminfo.info.x11.window;

    player.set_xwindow(win_id)
    player.set_mrl("agro.mp4")
    player.play()

    running = True
    event = SDL_Event()
    while running:
        while SDL_PollEvent(ctypes.byref(event)) != 0:
            if event.type == SDL_QUIT:
                running = False
                break
            elif event.type == SDL_KEYDOWN:
                if event.key.keysym.sym == SDLK_UP:
                    player.stop()
                    SDL_UpdateWindowSurface(window)
                if event.key.keysym.sym == SDLK_DOWN:
                    player.play()

    player.stop()
    vlcInstance.release()

    SDL_DestroyWindow(window)
    SDL_Quit()
    return 0

if __name__ == "__main__":
    sys.exit(main())
2

I found out it was because I installed PySDL2 using the “python” command instead of “python3”, so it installed PySDL2 into the Python 2.x folder, but the Python IDE (IDLE) that comes with Raspbarian uses Python 3. If I install using “python3”, then the Python3 IDE finds it without a problem.