这是唯一适用于我的方法.

This is the only method that works for me.

pip install pygame==1.9.1release --allow-external pygame --allow-unverified pygame

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这些是引导我执行此命令的步骤(我放了它们以便人们容易找到):

These are the steps that lead me to this command (I put them so people finds it easily):

$ pip install pygame
Collecting pygame
  Could not find any downloads that satisfy the requirement pygame
  Some externally hosted files were ignored as access to them may be unreliable (use --allow-external pygame to allow).
  No distributions at all found for pygame

然后，建议我允许外部:

Then, as suggestes I allow external:

$ pip install pygame --allow-external pygame
Collecting pygame
  Could not find any downloads that satisfy the requirement pygame
  Some insecure and unverifiable files were ignored (use --allow-unverified pygame to allow).
  No distributions at all found for pygame

因此，我也允许无法验证的内容:

So I also allow unverifiable:

$ pip install pygame --allow-external pygame --allow-unverified pygame
Collecting pygame
  pygame is potentially insecure and unverifiable.
  HTTP error 400 while getting http://www.pygame.org/../../ftp/pygame-1.6.2.tar.bz2 (from http://www.pygame.org/download.shtml)
  Could not install requirement pygame because of error 400 Client Error: Bad Request
  Could not install requirement pygame because of HTTP error 400 Client Error: Bad Request for URL http://www.pygame.org/../../ftp/pygame-1.6.2.tar.bz2 (from http://www.pygame.org/download.shtml)

因此，在访问 http://www.pygame.org/download.shtml之后>，我考虑添加版本号(1.9.1release是当前稳定的版本).

So, after a visit to http://www.pygame.org/download.shtml, I thought about adding the version number (1.9.1release is the currently stable one).

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希望有帮助.