- Build pyenv Python versions on macOS Catalina 10.15. 19 February 2020 9 comments Python. BUILD FAILED (OS X 11.0.1 using python-build 1.2.21-1-g943015eb).
- Installing Python 3.8 on Mac OSX. We will use Homebrew to install Python 3.8 and will then move on to creating a virtual environment. If you don't have Homebrew installed on your Macbook, you can install Homebrew on your MacOSX and then use it to install Python 3.8 on your machine.
MacOS comes by default with Python 2.7 which, at this point, receives only bug fixes and will be EOL by 2020. Python 3.x is the future and it is supported by all major Python libraries. In this tutorial, we’ll use the Python 3.8. Start by installing the Command Line Tools for macOS.
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I'm still working on getting pyenv in my bloodstream. It seems like totally the right tool for having different versions of Python available on macOS that don't suddenly break when you run brew upgrade periodically. But every thing I tried failed with an error similar to this:
I read through the Troubleshooting FAQ and the 'Common build problems' documentation. xcode was up to date and I had all the related brew packages upgraded. Nothing seemed to work.
Until I saw this comment on an open pyenv issue: 'Unable to install any Python version on MacOS'
Python 3 Macos Catalina Update
All I had to do was replace the 10.14 for 10.15 and now it finally worked here on Catalina 10.15. So, the magical line was this:
Hopefully, by blogging about it you'll find this from Googling and I'll remember the next time I need it because it did eat 2 hours of precious evening coding time.
Python 3 Macos Catalina Free
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