Pip Version Confusion

[Tim Johnson]

* Tim Johnson <tim at akwebsoft.com> [180324 10:32]:
> * Steven D'Aprano <steve+comp.lang.python at pearwood.info> [180324 08:29]:
> > On Sat, 24 Mar 2018 07:40:17 -0800, Tim Johnson wrote:
> > 
> > > I'm on Ubuntu 16.04.
> > > 
> > > I'm getting the following message from pip:
> > > 
> > > You are using pip version 8.1.1, however version 9.0.3 is available. You
> > > should consider upgrading via the 'pip install --upgrade pip' command.
> > [...]
> > > Not sure how to resolve - please advise, thanks
> > 
> > 
> > Well, what happens when you try running 
> > 
> > pip install --upgrade pip
> tim at linus:~/Downloads$ pip install --upgrade pip
> Requirement already up-to-date: pip in
> /home/tim/.local/lib/python2.7/site-packages
> > 
> > I expect that you've probably got two (or more!) pips installed, and 
> > somehow sometimes you get one and sometimes the other. The problem is, it 
> > seems to me, that we can get pip installed through at least three 
> > mechanisms:
>  
>    pips all over the place ... pips, pips2, pips2.7
>    all but /usr/bin/pip2 show version as 9.0.3
>    /usr/bin/pip2 is version 8.1.1
>    # code follows
> #!/usr/bin/python
> # EASY-INSTALL-ENTRY-SCRIPT: 'pip==8.1.1','console_scripts','pip2'
> __requires__ = 'pip==8.1.1'
> import sys
> from pkg_resources import load_entry_point
> 
> if __name__ == '__main__':
>     sys.exit(
>         load_entry_point('pip==8.1.1', 'console_scripts', 'pip2')()
>     )
> 
> Looks like I should not have install pip via the ubuntu package manager.
  From the package manager:
python-pip/xenial-updates,xenial-updates,now 8.1.1-2ubuntu0.4 all
[installed]
python-pip-whl/xenial-updates,xenial-updates,now 8.1.1-2ubuntu0.4
all [installed,automatic]

Think I've found it... I'll trying 'deinstalling' that package and
see if the nonsense goes away.

Thank you Steven!

-- 
Tim Johnson
http://www.akwebsoft.com, http://www.tj49.com