Tutorial on installing the Python Pillow library on the MacOS System

This article mainly introduces how to install the Python Pillow library in MacOS. The Pillow library is used to process pictures. If you need it, you can refer to the following example to help your friends make python gadgets, if the ptyhon support library is missing from the system, the following information is returned:

ImportError: No module named PIL
Then download and install it. Because there is no python management tool pip on the machine, install it together.
1. Install pip

sudo easy_install pip 

You can directly install pil or pillow after pip is installed successfully.

2. Run pip install pil

pip install Pil 

Downloading/unpacking Pil  Could not find any downloads that satisfy the requirement Pil  Some externally hosted files were ignored (use --allow-external Pil to allow). Cleaning up... No distributions at all found for Pil Storing debug log for failure in /Users/macbook/Library/Logs/pip.log 

3. Install pillow.

pip install --use-wheel Pillow 

Downloading/unpacking Pillow  Downloading Pillow-2.4.0.zip (6.5MB): 5.0MB downloaded Cleaning up... 

When I get it back, I find that the download is not complete. This is a slow process, so I gave up.
4. Git

Download source code https://github.com/python-imaging/Pillow through git

git clone https://github.com/python-imaging/Pillow.git 

Then start compilation and Installation

4.1

python setup.py build_ext -i 

After compilation, you will be prompted to run the test example and find JPEG support not available.

-------------------------------------------------------------------- version   Pillow 2.4.0 platform   darwin 2.7.5 (default, Aug 25 2013, 00:04:04)        [GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)] -------------------------------------------------------------------- --- TKINTER support available *** JPEG support not available *** OPENJPEG (JPEG2000) support not available --- ZLIB (PNG/ZIP) support available *** LIBTIFF support not available --- FREETYPE2 support available *** LITTLECMS2 support not available *** WEBP support not available *** WEBPMUX support not available -------------------------------------------------------------------- To add a missing option, make sure you have the required library, and set the corresponding ROOT variable in the setup.py script.  To check the build, run the selftest.py script. 

4.2 an error is reported when running python selftest. py because JPEG support not available.

1 tests of 57 failed.

So I had to uninstall pillow.

You can run the pip command to uninstall the SDK.

pip uninstall pillow sudo pip uninstall pillow 

Password: Uninstalling Pillow:  /Library/Python/2.7/site-packages/Pillow-2.4.0-py2.7-macosx-10.9-intel.egg  /usr/local/bin/pilconvert.py  /usr/local/bin/pildriver.py  /usr/local/bin/pilfile.py  /usr/local/bin/pilfont.py  /usr/local/bin/pilprint.py Proceed (y/n)? y  
  Successfully uninstalled Pillow  
 

After successful installation, you must install libjpeg support.

brew install libjpeg 

Recompile pillow after successful installation

-------------------------------------------------------------------- version   Pillow 2.4.0 platform   darwin 2.7.5 (default, Aug 25 2013, 00:04:04)        [GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)] -------------------------------------------------------------------- --- TKINTER support available --- JPEG support available *** OPENJPEG (JPEG2000) support not available --- ZLIB (PNG/ZIP) support available *** LIBTIFF support not available --- FREETYPE2 support available *** LITTLECMS2 support not available *** WEBP support not available *** WEBPMUX support not available -------------------------------------------------------------------- python selftest.py  -------------------------------------------------------------------- Pillow 2.4.0 TEST SUMMARY  -------------------------------------------------------------------- Python modules loaded from /Users/macbook/yyang/app-devel-source/python/Pillow/PIL Binary modules loaded from /Users/macbook/yyang/app-devel-source/python/Pillow/PIL -------------------------------------------------------------------- --- PIL CORE support ok --- TKINTER support ok --- JPEG support ok *** JPEG 2000 support not installed --- ZLIB (PNG/ZIP) support ok *** LIBTIFF support not installed --- FREETYPE2 support ok *** LITTLECMS2 support not installed *** WEBP support not installed -------------------------------------------------------------------- Running selftest: --- 57 tests passed. 

Last install

sudo python setup.py install