You may need to do brew uninstall pillow first if homebrew warns you that pillow is already installed.The instructions provided here is used to setup Ansible for managing other systems. If you only want to install pillow for python3. If you don't need Python 2.x support at all, you can pass -with-python3 -without-python.īrew install pillow -with-python3 -without-python For simultaneous Python 3 support, use brew install -with-python3. On this github page they claim thatįormulæ are installed with Python 2 support by default. For your questions about installing pillow via homebrew, I believe you should already done brew tap homebrew/python, because that's how you can install python packages from homebrew. But I am not sure whether packages installed from the two ways will be put in the same location. Python package installed via homebrew is already built and compiled for your specific system (Macos). It fetches the package from the the Python Package Index then compile and build it in your computer. My understanding is that pip-installed package is not compiled for your specific system. I am also kind of confused about the differences between pip-installed vs. If I had installed pillow with pip install pillow instead of brew install pillow would the installation on my system be any different? Why would Homebrew make a formula that does something that pip already does? Would it check for additional prerequisites or something? Why is there a formula for pillow with python2, but not as far as I can tell for pillwo with python3? The first answers indicate that I haven't made myself plain.

Can you explain it to me? Also, is it preferable to install with Homebrew if a formula is available? If installing with Homebrew is indeed preferable, do you know how to install pillow for python 3 with Homebrew? I've never understood the difference, if any, between installing a python package with pip and installing it with Homebrew. As it happens, I have already installed pip3. I've found a post on SO that says to first install pip3 with Homebrew and then use pip3 install pillow. I tried brew install pillow3 but no luck. I haven't been able to find a way to install it for python 3. I tried brew install pillow and it worked fine, but only for python 2.7. I have python 2.7 and python 3.4, both installed with Homebrew.

Brew install pip