Installing Python Image Library (PIL) on an x64 system using CentOS as an example

    When developers require a lot of python and django of different versions on the same host,
    virtualenv comes to the rescue ...

    But after that you have to install additional modules for each python with your hands through pip

    And here there are nuances. For example, with the PIL library,

    it is perfectly installed, but when trying to work with it, it produces such excellent error messages.

    decoder jpeg not available

    The problem is that when building PIL, the library cannot work with jpeg, zlib, tiff, freetype, because in our case they are in / usr / lib64, and in PIL it is written to search only in / usr / local / lib

    Here is a diff that solves this problem:

    ***       2012-12-01 16:11:49.000000000 +0400
    ---    2012-12-01 16:12:15.000000000 +0400
    *** 147,152 ****
    --- 147,154 ----
                  add_directory(library_dirs, "/opt/local/lib")
                  add_directory(include_dirs, "/opt/local/include")
    +         add_directory(library_dirs, "/usr/lib64")
    +         add_directory(library_dirs, "/usr/lib")
              add_directory(library_dirs, "/usr/local/lib")
              # FIXME: check /opt/stuff directories here?

    And finally, an example installation for CentOS:
    It is understood that the required version of python and python-devel are already installed in the required
    virtual environment.

    yum install libjpeg libjpeg-devel zlib zlib-devel libtiff libtiff-devel freetype freetype-devel
    tar -zxvf Imaging-1.1.7.tar.gz
    cd Imaging-1.1.7

    Now patch and continue in the required virtual environment:

    python build --force
    python install

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