When Apple releases a new version of macOS it always takes a few months for everything to catchup, following my last blog post where I mentioned that I was having problems installing Python on macOS Big Surwhich meant that my preferred method of installing and managing Python using
pyenv, which is documented in this blog post, didn’t work out of the box — and the workarounds suggested workarounds on GitHub made my shell really slow.
Luckily, I noticed that there was an update to both Python and
pyenv when I ran
brew update today so decided to give
pyenv another try, and it worked as expected.
First I manually installed some prerequisites suggested on various GitHub issues, just to be on the safe side:
brew install zlib sqlite bzip2 libiconv libzip
Next up you can either install or upgrade to the latest version of
pyenv, which during writing is
brew install pyenv
If like me, you need to upgrade, then you can run:
brew upgrade pyenv
Once the latest version
pyenv has been installed, run the following commands to install the latest stable version of Python, which is currently 3.9.1:
pyenv install 3.9.1 pyenv global 3.9.1 pyenv version
Once installed, run the following command to make sure that the
pyenv managed version of Python is picked up:
Update: 11/06/2021; the command below has been updated to include a change to how the “pyenv init” command works.
echo -e $'if command -v pyenv 1>/dev/null 2>&1; then\\n export PYENV_ROOT="$HOME/.pyenv"\\n export PATH="$PYENV_ROOT/bin:$PATH"\\n eval "$(pyenv init --path)"\\n eval "$(pyenv init -)"\\nfi' >> ~/.zshrc
Open a new shell and run:
python --version which python
This should return something like the following:
$ python --version Python 3.9.1 $ which python /Users/russ.mckendrick/.pyenv/shims/python
The final step is to make sure that
pip is up-to-date, to do this run:
pip install --upgrade pip
This fixed a few issues I had when I ran:
pip install --user ansible
Which meant that I didn’t need to use my custom container anymore.