[Python-Dev] 3.5 release schedule PEP
tjreedy at udel.edu
Sat Sep 27 07:08:11 CEST 2014
On 9/26/2014 1:03 PM, Chris Barker wrote:
> On Thu, Sep 25, 2014 at 5:38 PM, Donald Stufft <donald at stufft.io
> <mailto:donald at stufft.io>> wrote:
>> 2) Switch to —user based on if the user has permission to
>> write to the
>> site-packages or not.
>> ouch -- no. Why not a clear error message if pip can't write to
>> site-packages -- something like:
> I fairly strongly believe that the current default is doing a great
> to users. I believe that for *most* people --user is the correct
> option for
> them to be using and the fact that it's not the default and requires
> opt in
> is a historical artifact more than anything else.
> OK -- fine -- I think that history may be important -- at least for Py2,
> but I agree that --user is a better default.
> But what I'm objecting to is is switching the install mode based on the
> permissions that the user happens to be running with at the time.
> None of us should be routinely running as admin. So what I do (and I
> image a LOT of people do) is try to do whatever I need to do, and only
> if I get an error to I switch to admin mode (or add sudo, or ???). What
> I'm suggesting is that folks that simply expect stuff to get installed
> into the usual system python is not thinking ahead of time "oh, I need
> be admin for this", but rather, simply do it, and then, if you get a
> permission error, make the switch to either admin in mode, or add --user.
> If we do switch the default to --user, then this issue goes away.
> In short -- too much magic is bad.
Pip on Windows should act like a normal Windows program. If I install
Python for all users, I expect pipped packages to be installed for all
users too, unless I specify otherwise. If installation (for all users)
requires admin privileges, I expect a UAC box to pop up and ask for the
admin password. This is pretty routine, at least with Win7. Most every
program I install does this either on installation or on first running.
Some Windows operations also pop up a box. There are only a few
things that require that I actually login as an admin user.
Terry Jan Reedy
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