如何在 Mac OS X 上使用或安装 MagickWand？

Question

I have problem with magickwand and python and Mac OX X.

When I'm importing it I get the error:

ImportError: MagickWand shared library not found. You probably had not
installed ImageMagick library. Try to install:   brew install imagemagick

brew install imagemagick Warning: imagemagick-6.8.9-1 already installed

Answer 1

To get Wand working with imagemagick 7:

brew install imagemagick
echo 'export MAGICK_HOME=/opt/homebrew/opt/imagemagick/' >> ~/.zshrc
echo 'export PATH="/opt/homebrew/opt/imagemagick/bin:$PATH"' >> ~/.zshrc

Answer 2

brew uninstall --force imagemagick

brew install imagemagick@6

echo 'export PATH="/usr/local/opt/imagemagick@6/bin:$PATH"' >> ~/.bash_profile

brew link imagemagick@6 --force

Answer 3

So, the actual problem is :

If your Python in not installed using MacPorts, you have to export MAGICK_HOME path as well. Because Python that is not installed using MacPorts doesn't look up /opt/local, the default path prefix of MacPorts packages.

from wand doc

And the solution they provide is :

$ export MAGICK_HOME=/opt/local

Answer 4

Based on Gowtham's & jrjc's answers, here's how I got the Wand python package to work using homebrew:

brew install imagemagick@6

echo 'export MAGICK_HOME=/usr/local/opt/imagemagick@6/' >> ~/.bash_profile

There's a few things to note here:

• wand at the time of this writing doesn't yet support imagemagick 7, see https://github.com/dahlia/wand/issues/316 .
• MAGICK_HOME seems to be the better way to set the variable - it's mentioned in the wand docs as jrjr's answer mentioned, and if you're really curious you can see how Wand looks for things in api.py under the library_paths method. I couldn't get Gowtham's approach of exporting the bin directory to work.