On 9 Jun 2017, at 20:54, Donald Stufft <donald@stufft.io> wrote:All that being said, if someone *does* want pip to use WinHTTP, requests provides a mechanism where you can plug in your own network handling code, so someone could write a requests-winhttp adapter that did that, and we could possibly even expose the ability to ask pip to use that. However that’s entirely in the domain of pip/requests feature requests and not really related to python-dev/this PEP itself.