Can pyenv coexist with standard Python 3 install?

Question

I use pyenv to manage Python versions in Mac OSX High Sierra , works fine. A new version of an important piece of software for me, QGIS v3 , requires that Python 3.6 exist on the system but looks for it only in /Library/Frameworks , which pyenv doesn't use. So the install fails.

My question is, will it blow up my Python environment installing Python outside of pyenv , with the Python.org installer?

Seems risky to try and maybe someone knows...

Answer 1

There is no need to add an additional standard installation of Python 3.6.x just to run the QGIS 3 installer. This worked for me (adapt version number):

1. uninstall previously installed Python 3.6.x

    pyenv uninstall 3.6.8 

2. reinstall with framework

    env PYTHON_CONFIGURE_OPTS="--enable-framework" pyenv install 3.6.8 

3. create a symlink

    sudo ln -s $(pyenv root)/versions/3.6.8/Python.framework /Library/Frameworks/Python.framework 

Answer 2

I do use pyenv at the system level and virtualenv for all development work. The question was specific to QGIS 3, which looks for Python 3.6 in a specific location on the filesystem, under Library/Frameworks and apparently ignores the environment. Bottom line: a 'standard' install of a Python 3 pkg from the Python site did the trick.