> On Apr 27, 2017, at 11:08 AM, Barry Warsaw <ba...@python.org> wrote:
> 
> Also note that `pip install` defaults to --user in Debian, and that alleviates
> a lot of the "well that didn't work, let me add sudo" urges.  Upstream, this
> bug tracks that, although it's long standing without much recent progress:
> 
> https://github.com/pypa/pip/issues/1668 
> <https://github.com/pypa/pip/issues/1668>
> 
> IMHO, that's the right direction to go, and I think Donald is philosophically
> aligned (apologies if I'm misreading that, DS!).  There are of course plenty
> of knock-on issues to work out, which is probably why that issue is still
> open.


I think solving this problem (to the degree it can be solved) relies on a 
multifaceted solution.

One part is certainly defaulting to —user in upstream where it makes sense to 
do so, so that people are not incentivized by a permission error by default to 
just throw a sudo in front of their command to make it work.

I think the other part is recognizing that there are valid use cases for ``sudo 
pip install`` (just like there are for doing ``sudo make install``) and 
striving to make that function as best we can. The two things I think need done 
for that are to standardize the “vendor” vs “local” split for site-packages 
that Debian has, so that the two different sources of a package are not 
fighting over dropping files into the same directory. The other thing I think 
that needs to get done is for pip to get better at the concept of overlaying 
installs on sys.path. We shouldn’t need to uninstall something in the “Vendor 
site-packages” in order to install it into the “local site-packages” (And 
similarly for user site-packages).

—
Donald Stufft



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