Install mojo on macos via homebrew

Mojo looks pretty exciting so here’s how i got it working on my machine, good luck!

Open your terminal.app

Install homebrew (if it isn’t already installed):

/bin/bash -c "$(curl -fsSL <https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh>)"

Then install python version 3.11 (currently the highest supported version by Mojo)

brew install python@3.11

Then add the python executables to your path:

echo 'export PATH="/opt/homebrew/opt/python@3.11/libexec/bin:$PATH"' >> ~/.zshrc \
  && source ~/.zshrc

pipx - Install and Run Python Applications in Isolated Environments:

brew install pipx
pipx ensurepath
sudo pipx ensurepath --global

Change to your workspace directory OR use this code to create a development folder in your home directory:

mkdir ~/Development && cd ~/Development

Ensure that you get something like “Python 3.11.9” when you run:

python3 --version

It may have a different Patch Level 3.11.x, like 3.11.10 as long as it is 3.11 or the latest supported version by mojo.

Install Mojo

curl -s https://get.modular.com | sh -

Activate a python venv for mojo

python3 -m venv mojo-venv && source mojo-venv/bin/activate

Then install mojo via the modular package manager:

modular install mojo

And add required modular and mojo to your path:

MOJO_PATH=$(modular config mojo.path) \
  && echo 'export MODULAR_HOME="'$HOME'/.modular"' >> ~/.zshrc \
  && echo 'export PATH="'$MOJO_PATH'/bin:$PATH"' >> ~/.zshrc \
  && source ~/.zshrc  

Now you should be able to run the mojo repl

mojo repl

And get something like this:

Welcome to Mojo! 🔥

Expressions are delimited by a blank line.
Type `:quit` to exit the REPL and `:mojo help` for further assistance.

  1>  

Good luck!