Jens Alfke

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5 years, 11 months ago.

Permissions problems using mbed-cli on mac OS

I'm trying to install mbed-cli and the 'blinky' program on macOS 10.13.4, and having a bunch of issues that seem to involve file permissions, since the /Library/Python directory is owned by root. I've used Python before but I was never an expert, and my skills are rusty, so I don't know how to get around these problems. (And the docs should be updated to provide instructions that work on the current OS!)

I've gotten some ways by prefixing `sudo` to the easy_install and pip commands, but then `mbed import` fails:

transcript

$  mbed import https://github.com/ARMmbed/mbed-os-example-blinky
[mbed] Importing program "mbed-os-example-blinky" from "https://github.com/ARMmbed/mbed-os-example-blinky" at latest revision in the current branch
[mbed] Adding library "mbed-os" from "https://github.com/ARMmbed/mbed-os" at rev #ae6c7c60f91c
[mbed] Auto-installing missing Python modules...
[mbed] WARNING: Unable to auto-install required Python modules.
---
[mbed] WARNING: -----------------------------------------------------------------
[mbed] WARNING: The mbed OS tools in this program require the following Python modules: mbed_ls, mbed_host_tests, mbed_greentea, beautifulsoup4, fuzzywuzzy, pyelftools, jsonschema
[mbed] WARNING: You can install all missing modules by running "pip install -r requirements.txt" in "/Couchbase/Embedded/mbed-os-example-blinky/mbed-os"
[mbed] WARNING: On Posix systems (Linux, Mac, etc) you might have to switch to superuser account or use "sudo"

So then I do what the warning suggests:

transcript

$  cd /Couchbase/Embedded/mbed-os-example-blinky/mbed-os
$  sudo pip install -r requirements.txt

... lots of installation logging here ...

matplotlib 1.3.1 requires nose, which is not installed.
matplotlib 1.3.1 requires tornado, which is not installed.
mock 2.0.0 has requirement six>=1.9, but you'll have six 1.4.1 which is incompatible.
Installing collected packages: mbed-ls, setuptools, hidapi, pyOCD, mbed-host-tests, lockfile, pbr, funcsigs, mock, mbed-greentea, beautifulsoup4, fuzzywuzzy, pyelftools, functools32, jsonschema
  Running setup.py install for mbed-ls ... done
  Found existing installation: setuptools 18.5
    Uninstalling setuptools-18.5:
Could not install packages due to an EnvironmentError: [('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py', '/private/tmp/pip-uninstall-3nVn3H/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py', "[Errno 1] Operation not permitted: '/private/tmp/pip-uninstall-3nVn3H/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc', '/private/tmp/pip-uninstall-3nVn3H/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc', "[Errno 1] Operation not permitted: '/private/tmp/pip-uninstall-3nVn3H/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py', '/private/tmp/pip-uninstall-3nVn3H/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py', "[Errno 1] Operation not permitted: '/private/tmp/pip-uninstall-3nVn3H/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc', '/private/tmp/pip-uninstall-3nVn3H/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc', "[Errno 1] Operation not permitted: '/private/tmp/pip-uninstall-3nVn3H/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib', '/private/tmp/pip-uninstall-3nVn3H/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib', "[Errno 1] Operation not permitted: '/private/tmp/pip-uninstall-3nVn3H/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib'")]

Any suggestions?

From this error message:

mock 2.0.0 has requirement six>=1.9, but you'll have six 1.4.1 which is incompatible.

It sounds like it might be this issue:

https://github.com/pypa/pip/issues/3165

there's a few workarounds suggested on the ticket, like:

pip install ignore-installed six

The one I've used successfully is to "brew install python" and then use that version of python rather than the system python.

posted by Traun Leyden 15 May 2018

Yeah, I was afraid I might have to go with a whole new python installation. Sigh. https://xkcd.com/1987/

posted by Jens Alfke 15 May 2018
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