title: Why is the .exe file created by pyinstaller not working?
body: <p>I built a simple "flappy bird" game with pygame and then tried to convert the .py script with pyinstaller into an .exe with <code>pyinstaller flappybird.py</code>. But when I try to execute the .exe, the command prompt and the game window open for about 2 seconds without displaying any errors and without showing anything from the game, which works fine when executed as python script via <code>flappybird.py</code>in the command prompt. I am using the newest version of pyinstaller and I don´t have any idea why this isn´t working, since it worked like a charm with other games I wrote before.</p>
  
  <p>Thanks for your help ;D</p>