ImportError: No module named pygame

[anthropornis]

I ran the following commands on Ubuntu 12.04 64bit:

  bzr branch lp:pomodoro-indicator
  cd pomodoro-indicator
  sudo python setup.py install
  pomodoro-indicator

I couldn't get the indicator to run. The output from the last command above is:
Traceback (most recent call last):
  File "/usr/local/bin/pomodoro-indicator", line 47, in <module>
    from pomodoro import visual
  File "/usr/share/pomodoro-indicator/pomodoro/visual.py", line 34, in <module>
    import pygame
ImportError: No module named pygame

Is there anything I can do myself to make it run? Thanks!