[Distutils] Where can I found the meaning of .pth, .-nspkg.pth, .egg-info, .egg-link extensions files of site-package directory ?

[P.J. Eby]

At 04:41 PM 8/30/2011 +0200, Stéphane Klein wrote:
>Hi,
>
>where can I found the meaning of all this extensions of 
>"site-packages/" folder files :
>
>* .pth ?
>* .-nspkg.pth ?
>* .egg-info ?
>* .egg-link ?

All except nspkg.pth can be found at:

   http://peak.telecommunity.com/DevCenter/EggFormats