Before you start the PyQt5 tutorial you will need to have a working installation of PyQt5 on your system. If you don't have either set up yet, the following steps will guide you through how to do this on macOS.
This guide is also available for Linux and Windows.
Note that the following instructions are only for installation of the GPL licensed version of PyQt. If you need to use PyQt in a non-GPL project you will need to purchase an alternative license from Riverbank Computing to release your software.
Install PyQt5 on macOS
If you already have a working installation of Python 3 on macOS, you can go ahead and install PyQt5 as for any other Python package, using the following --
pip3 install pyqt5
If you don't have an installation of Python 3, you will need to install one first. You can download macOS installers for Python 3 from the Python homepage. Once installed, you should be able to use the pip3 install command above to install PyQt5.
Another alternative is to use Homebrew. Homebrew is a package manager for command-line software on macOS. Homebrew has both Python 3 and PyQt5 available in their repositories.
Homebrew -- the missing package manager for macOS
To install homebrew run the following from the command line --
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
This is also available to copy and paste from the Homebrew homepage.
Once Homebrew is installed you can then install Python with --
brew install python3
With Python installed, you can then install PyQt5 as normal, using pip3 install pyqt5, or alternatively choose to install it using Homebrew with --
brew install pyqt5
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