[PYTHON] CPU usage is 100% when using pygame on Ubuntu 16.04

Symptoms

Using pygame on Ubuntu 16.04 results in 100% CPU usage.

main.py

import time
import pygame

pygame.init()

while True:
    time.sleep(1)

It is a code that does nothing, but if you check it on top

top

top - 13:18:43 up  6:21,  1 user,  load average: 0.78, 0.56, 0.48
Tasks: 329 total,   1 running, 328 sleeping,   0 stopped,   0 zombie
%Cpu(s): 26.0 us,  4.8 sy,  0.6 ni, 68.2 id,  0.4 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem : 12222916 total,  5867808 free,  3502168 used,  2852940 buff/cache
KiB Swap: 12502012 total, 12502012 free,        0 used.  7608068 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND     
18635 USER     20   0  704956  31568  18668 S  93.8  0.3   0:41.60 python2.7   
 1800 USER     20   0 1251136 113176  64712 S   6.2  0.9   6:27.81 compiz      
    1 root      20   0  119960   6064   3932 S   0.0  0.0   0:03.00 systemd     
    2 root      20   0       0      0      0 S   0.0  0.0   0:00.00 kthreadd    
    3 root      20   0       0      0      0 S   0.0  0.0   0:00.21 ksoftirqd/0 
    5 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/0:+ 
    7 root      20   0       0      0      0 S   0.0  0.0   0:09.43 rcu_sched   
    8 root      20   0       0      0      0 S   0.0  0.0   0:00.00 rcu_bh      
    9 root      rt   0       0      0      0 S   0.0  0.0   0:00.09 migration/0 
   10 root      rt   0       0      0      0 S   0.0  0.0   0:00.04 watchdog/0  
   11 root      rt   0       0      0      0 S   0.0  0.0   0:00.04 watchdog/1  
   12 root      rt   0       0      0      0 S   0.0  0.0   0:00.07 migration/1 
   13 root      20   0       0      0      0 S   0.0  0.0   0:00.20 ksoftirqd/1 
   15 root       0 -20       0      0      0 S   0.0  0.0   0:00.00 kworker/1:+ 
   16 root      rt   0       0      0      0 S   0.0  0.0   0:00.04 watchdog/2  
   17 root      rt   0       0      0      0 S   0.0  0.0   0:00.08 migration/2 
   18 root      20   0       0      0      0 S   0.0  0.0   0:00.24 ksoftirqd/2 

You can see that Python occupies the CPU for a terrible time.

The environment is as follows. CPU:Core i3 4005u Memory:12G OS:Ubuntu 16.04(LTS)

Investigation / cause

Apparently pygame.init () is doing something wrong. According to the pygame documentation, pygame.init () seems to be a function that initializes multiple modules at once. Only the module specified by pygame. [module name] .init () can be initialized. So, when I initialized the modules individually, the CPU usage was 100% immediately after calling pygame.base.init (). Is this the cause?

Countermeasures

Instead of writing pygame.init (), if there is a module that needs to be initialized, it will be initialized with pygame. [Module name] .init (). Fortunately, pygame.base doesn't seem to cause an error without initialization, so I solved it for the time being.