If this is the case, you can select which version you want to use by specifying the version number, e.g.: 1 python3.7Īfter the above, you can invoke Python 3.8 using the python3.8 command. You can also check the video version of this tutorial if you want to see how I did it.Īs a side note, you can have multiple Python 3 versions installed on your macOS machine. The official installer of Python is a pkg file that will start a GUI installer which will guide you through the installation. Once the Command Line Tools are installed, we can install Python. Open a Terminal and write: 1 xcode-select -install Please note, that you will need the Command Line Tools even if you’ve already installed Xcode. Start by installing the Command Line Tools for macOS. In this tutorial, we’ll use the Python 3.8. Python 3.x is the future and it is supported by all major Python libraries.
Open a terminal window and enter python3 to start Python.MacOS comes by default with Python 2.7 which, at this point, receives only bug fixes and will be EOL by 2020. Sudo apt-get install libatlas-base-dev libjasper-dev libqtgui4 python3-pyqt5įinally, we can enter a wonderfully simple command to install opencv:įor those of you also used to installing OpenCV manually I am sure you will be as happy as I am! Now let’s just make sure that OpenCV is working. Sudo apt-get install libqtwebkit4 libqt4-test Sudo apt-get install libhdf5-dev libhdf5-serial-dev Make sure apt-get is fully up to date by entering the following in Terminal: Next, and for the Raspberry Pi only, we need to install some additional packages. Or if you are still working with Python 2.7, simply enter: Pip should already be installed on your system (see here), but if it’s not, we can install it with wget. Pip is the main package manager for python that we will also use to install opencv.
If you want more background information, see the excellent article by Adrian Rosebrock from. Luckily this has changed very recently as it is now possible to install OpenCV with pip!īelow I guide you through the basic steps that I think are necessary to get opencv to work nicely on Mac, Ubuntu and Raspberry Pi. This was especially painful when working with a Raspberry Pi as building and installing OpenCV took a lot of time on the RPi, especially on the older models. Installing OpenCV has never been easy and always required a lot of careful usage of the command line to build from source.
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