[pyre]

> `easy_install` is not a library per se, it's a binary offered by setuptools.

I thought that I clarified that in my post, but if you could tell me what was confusing, I'll use that to inform future discussions I have on this.

> This is incorrect. Setuptools is an extension of distutils (it patches and extends distutils to have additional functionality). Distribute was a fork of Setuptools that has been merged back into Setuptools.

Correct, and one reason why the landscape has been confusing for a while (confusion between distutils/setuptools/distribute). Thankfully distribute has been merged back into setuptools.

> Also, `pth` is not a installation method

You're right. It's a way to customize the import system, but it's "main" usage in the wild is during installation/setup. The main place that I've seen it used is with easy_install + eggs (IIRC).