On Fri, 06 Jul 2018 11:58:08 +1000, Chris Angelico wrote: > On Fri, Jul 6, 2018 at 11:35 AM, Steven D'Aprano > <steve+comp.lang.pyt...@pearwood.info> wrote: >> On Fri, 06 Jul 2018 03:47:55 +1000, Chris Angelico wrote: >> >>> What's the output of: >>> >>> $ apt-cache show python3-pip >> >> Mysteriously, the output is repeated twice, in every-so-slightly >> different formats. It's the little details like that give us confidence >> in the quality of the software... > > The solution to the mystery is here: > >> Package: python3-pip >> Version: 8.1.1-2ubuntu0.4 >> >> Package: python3-pip >> Version: 8.1.1-2 > > You can see where the two packages come from with: > > $ apt-cache policy python3-pip > > It probably means you have multiple package sources configured;
I am using the default configuration. > or > perhaps you have one installed currently, and you could upgrade to a > slightly updated version. Given that I had just run apt install python3-pip yesterday, that would be surprising but not impossible... let's find out: steve@orac /home $ apt install python3-pip Reading package lists... Done Building dependency tree Reading state information... Done python3-pip is already the newest version (8.1.1-2ubuntu0.4). > In any case, setuptools is listed in the recommends. If setuptools isn't included, pip can fail. I don't know if it will fail *always*, but it will surely fail *most* of the time. setuptools should not be treated as an optional extra for pip. -- Steven D'Aprano "Ever since I learned about confirmation bias, I've been seeing it everywhere." -- Jon Ronson -- https://mail.python.org/mailman/listinfo/python-list
