[Python-modules-team] Bug#895232: Please do not force --ignore-installed behaviour for non-root users

[Max Bowsher]

Package: src:python-pip
Version: 9.0.1-2

Currently, there is a Debian-specific patch "set_user_default.patch" 
which changes various behaviour if the invoker is not root.

Whilst I understand the sense in defaulting to --user in this case, I 
would like to request that you not force --ignore-installed too, with no 
way to opt out.

As a user, I want to be able to install within ~/.local/, packages I 
need for ad-hoc development, but I do not want to needlessly accumulate 
duplicate installs which could equally have been satisfied using 
packages already installed in the system Python installation.

This bug report complements, but does not wholly duplicate #876145, 
which reports problems caused by forcing --ignore-installed in other 
scenarios.

Thanks,
Max.