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 Sur
which 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
andpyenv 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 1.2.22:
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:
Info
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.