GIS: Troubles with pyqt Installation on Mac OS Sierra

Installing PyQt on Mac OS Sierra can be a tricky process, especially if you are not familiar with the command line interface. In this tutorial, we will walk you through the steps to successfully install PyQt on your Mac OS Sierra machine.

Step 1: Install Homebrew

Homebrew is a package manager for Mac OS that will help us install the required libraries and dependencies for PyQt. To install Homebrew, open your terminal and paste the following command:

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Follow the on-screen instructions to complete the installation of Homebrew.

Step 2: Install Qt

Qt is a cross-platform application development framework that is required by PyQt. To install Qt using Homebrew, run the following commands in your terminal:

brew install qt

Wait for the installation to complete. This may take some time depending on your internet speed.

Step 3: Install PyQt5

Now that we have Qt installed, we can proceed with installing PyQt5. Run the following command in your terminal:

pip3 install pyqt5

If you encounter any errors during the installation process, you may need to specify the location of the Qt libraries. To do this, run the following command:

pip3 install --global-option=build_ext --global-option="-I/usr/local/include" --global-option="-L/usr/local/lib" pyqt5

Step 4: Testing the installation

To test if PyQt was successfully installed on your Mac, open a Python interpreter in your terminal by typing:

python3

Then, import the PyQt5 module by typing:

import PyQt5

If you do not encounter any errors, PyQt5 has been successfully installed on your Mac. Congratulations!

If you encounter any difficulties during the installation process, make sure to double-check the steps and ensure that all dependencies are installed correctly. If you are still having trouble, feel free to seek help from online forums or consult the official PyQt documentation.

In conclusion, installing PyQt on Mac OS Sierra can be a bit challenging, but with the right tools and guidance, you can successfully set up PyQt for your GIS projects. Good luck!