pycairo Installation - Noctem/Monocle GitHub Wiki
macOS
You can use homebrew (or similar package managers):
brew install py3cairo
Linux
Use your system's package manager.
Arch
pacman -S python-cairo
Fedora
dnf install python3-cairo
Debian/Ubuntu/Mint/etc.
apt-get install python3-cairo
Windows
You can install one of these (cp35 or cp36, depending on which version of Python you have).