[llvm-dev] pip issue on buildbot running on newer distro

[Joachim Durchholz via llvm-dev]

Am 16.10.2015 um 00:12 schrieb Bill Seurer via llvm-dev:
> I just moved the ppc64le lnt buildbot to a new machine whose distro has
> a later release of pip than was on the old machine.  The later release
> requires the use of https or the --trusted-host option or it generates
> an error.

 > If the LNTBuilder code is updated to fix this problem is this going
 > to cause a problem for bots running with older versions of pip?

https://media.readthedocs.org/pdf/pip/develop/pip.pdf says that 
trusted-host is available since pip 6.0 (2014-12-22).
IOW there will be problems if an older pip is in use.

Most people upgrade pip at the drop of a hat because usually pip would 
continue to "just work".
IOW adding trusted-host *should* be fine, but you will want to test that.

The option can be added on the command line or in pip.conf.
(It should have been possible in requirements.txt but they forgot to 
implement that; this is fixed since Sep 5, but I don't know whether that 
made it into a pip release yet. See 
https://github.com/pypa/pip/issues/2822 and 
https://github.com/pypa/pip/pull/3007 .)