I installed python26 using macports, so the correct python on my system is /opt/local/bin/python
However, when I do
sudo pip install <packagename>
It gives me
sudo pip install <somepackage>
Exception:
Traceback (most recent call last):
File "/Library/Python/2.6/site-packages/pip-1.0.1-py2.6.egg/pip/basecommand.py", line 126, in main
self.run(options, args)
File "/Library/Python/2.6/site-packages/pip-1.0.1-py2.6.egg/pip/commands/install.py", line 215, in run
import setuptools
ImportError: No module named setuptools
Storing complete log in /Users/navin/.pip/pip.log
And so, I suspect that it is using the system python. I've installed distribute (which contains setuptools) via their site instructions. I installed pip via an installer as well. I somehow managed to clobber the setuptools for the system python I think, so that's why I'm having this problem now :(
What do I do to get pip working again?
To use the get-pip script to install PIP on Mac:Open the Terminal app via the Launchpad. In the Terminal, type curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py and press Enter. Allow curl time to download the script onto your Mac. Once it's done, type python3 get-pip.py and press Enter.
Pip is a command that you can use on the Linux or Mac command line. You can select a package from here.
Policy for non-brewed Python bindings These should be installed via pip install <package> . To discover, you can use pip search or https://pypi.org. Note: macOS's system Python does not provide pip . Follow the pip documentation to install it for your system Python if you would like it.
UPDATE: I strongly recommend installing CPython by building from source (example), and then creating virtual environments to work in.
Summarizing the above, installing pip
using Macports:
sudo port install py39-pip
results in an installation of a MacPorts port named py39-pip
.
However, no /opt/local/bin/pip
is installed and port select pip
or port select py27-pip
both fail (in contrast to port select python
). Changing things in the bin
directory of another distribution is not recommended.
Note that Python files in:
/usr/bin
are of the preinstalled Python of macOS/usr/local/bin
are installed by MacPython, available from python.org
/opt/local/bin
are installed by MacPorts.The actual executable files can be found by ls -ls
applied to the various Python-related symbolic links found in each of the above bin
directories).
To ensure that the Python installed by MacPorts is called first, place /opt/local/bin
within the runtime environment's PATH
earlier than /usr/bin
and /usr/local/bin
. This can be done in the file ~/.bash_profile
or the file ~/.bashrc
(which one depends on your system and configuration). For example, writing
export PATH=/opt/local/bin:$PATH
last in ~/.bashrc
will have this effect (assuming that the intended shell will source the file ~/.bashrc
).
After the paths have been appropriately defined, the system still fails to find a pip
command in the Macports bin
directory, because it is installed as /opt/local/bin/pip3.9
. The file /opt/local/bin/pip
is not automatically created.
As a result, the system continues searching the PATH
, and if e.g. MacPython is added to the path some place later and has pip
installed, then that pip
will show up.
This can be avoided by the command proposed above:
sudo ln -s /opt/local/bin/pip3.9 /opt/local/bin/pip
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