The example works when I open it in your repl, but when I fork to my own it doens't work :-(
I wanted to test it because I find pygame and love2d kind of slow responding/ laggy when I move a picture around (with keyboard input)
Some of the error code:
Display is not capable of DPMS
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM default
^CTraceback (most recent call last):
File "main.py", line 25, in <module>
time.sleep(10 / 1000)
XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
after 123 requests (123 known processed) with 12 events remaining.
exit status 1