swatchbooker.rb

class Swatchbooker < Formula
  desc "Reads color swatches from various file formats"
  homepage "http://www.selapa.net/swatchbooker/"
  url "https://launchpad.net/swatchbooker/trunk/0.7.3/+download/SwatchBooker-0.7.3.tar.gz"
  sha256 "c0c8bf038156337f1eebdf6f7c99f5b7a8e8f9a332cd625c57269ddc8ba18eb7"

  resource "Pillow" do
    url "https://pypi.python.org/packages/source/P/Pillow/Pillow-2.9.0.zip"
    sha256 "d1db8dfed77547076037d589b598e04f2cbc1a7835d3d3f137bf20c8994854d5"
  end

  depends_on :python
  depends_on "little-cms" => "with-python"
  depends_on "pyqt"

  patch :DATA

  def install
    # Tell launching shell scipts where the python library is
    inreplace %w[data/swatchbooker data/sbconvert data/sbconvertor] do |s|
      s.gsub! "/usr/lib", "#{HOMEBREW_PREFIX}/lib"
    end

    ENV["PYTHONPATH"] = libexec/"vendor/lib/python2.7/site-packages"

    resource("Pillow").stage
      system "python", *Language::Python.setup_install_args(libexec/"vendor")
      ENV.prepend_create_path "PYTHONPATH", libexec/"vendor/lib/python2.7/site-packages/PIL"

      system "python", "setup.py", "install", "--prefix=#{prefix}"
      bin.env_script_all_files(libexec+"bin", :PYTHONPATH => ENV["PYTHONPATH"])
      chmod 0755, libexec/"bin/swatchbooker"
    end

  test do
    system "#{bin}/swatchbooker"
  end
end

__END__
diff --git a/src/swatchbook/color.py b/src/swatchbook/color.py
index 48ae503..f3511a2 100644
--- a/src/swatchbook/color.py
+++ b/src/swatchbook/color.py
@@ -28,7 +28,7 @@ def dirpath(name):
	if not name:
		return name
	elif os.path.islink(name):
-		return os.path.dirname(os.path.abspath(os.path._resolve_link(name)))
+		return os.path.dirname(os.path.abspath(os.path.realpath(name)))
	else:
		return os.path.dirname(name)

Made Pillow unconditional (https://github.com/Homebrew/homebrew/blob/8ba134eda537d2cee7daa7ebdd9f728389d9c53e/Library/Formula/swatchbooker.rb#L8)