Python environment on mac

[CFK]

There are two variables you will need to set; PATH and PYTHONPATH. You set
your PYTHONPATH correctly, but for executables like pip, you need to set
the PATH as well. You MUST do that for each account! The reason it didn't
work as root is because once you su to root, it replaces your PYTHONPATH
and PATH (and all other environment variables) with root's. sudo shouldn't
have that problem.

BE VERY CAREFUL CHANGING THESE VARIABLES FOR ROOT! I managed to wedge a
system until I reverted my environment.

Thanks,
Cem Karan

On Jul 26, 2016 9:58 AM, "Crane Ugly" <vostrushka at gmail.com> wrote:

> Mac OS X comes with its own version of python and structure to support it.
> So far it was good enough for me. Then I started to use modules that
> distributed through MacPorts and this is where I get lost.
> I do not quite understand how Python environment is set. Or how to set it
> in a way of using, say MacPorts distribution alone.
> For example: standard location for pip utility is /usr/local/bin/pip.
> MacPorts structure has it too but as a link
> lrwxr-xr-x 1 root admin 67 May 23 22:32 /opt/local/bin/pip-2.7 ->
> /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/pip
> Which means that the standard utility will be used.
> The things is that depending on a way I run pip I get different results:
> $ pip list|grep pep8
> pep8 (1.7.0)
> $ sudo pip list|grep pep8
> $
> pep8 was installed through macports.
> In second case pip is using stripped environment and pointing to standard
> Mac OS Python repository.
> But in a way to install anything with pip I have to use sudo.
> In my profile I have variable PYTHONPATH:
>
> PYTHONPATH=/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages
> It is pointing to macports structure. But when I use sudo (in case of
> using pip) it get stripped.
> How to setup and maintain python environment in a trustful way? So it is
> clear where all installed modules are?
>
> Leonid
> --
> https://mail.python.org/mailman/listinfo/python-list
>