require 'formula' # Python 2.7.x is available as a separate formula: # $ brew install python # Was a Framework build requested? def build_framework?; ARGV.include? '--framework'; end # Are we installed or installing as a Framework? def as_framework? (self.installed? and File.exists? prefix+"Frameworks/Python.framework") or build_framework? end class Distribute < Formula url 'http://pypi.python.org/packages/source/d/distribute/distribute-0.6.27.tar.gz' md5 'ecd75ea629fee6d59d26f88c39b2d291' end class Python3 < Formula homepage 'http://www.python.org/' url 'http://python.org/ftp/python/3.2.3/Python-3.2.3.tar.bz2' md5 'cea34079aeb2e21e7b60ee82a0ac286b' depends_on 'pkg-config' => :build depends_on 'readline' => :optional # Prefer over OS X's libedit depends_on 'sqlite' => :optional # Prefer over OS X's older version depends_on 'gdbm' => :optional def options [ ["--framework", "Do a 'Framework' build instead of a UNIX-style build."], ["--universal", "Build for both 32 & 64 bit Intel."], ["--static", "Build static libraries."] ] end # Skip binaries so modules will load; skip lib because it is mostly Python files skip_clean ['bin', 'lib'] # The Cellar location of site-packages # This location is different for Framework builds def site_packages if as_framework? # If we're installed or installing as a Framework, then use that location. return prefix+"Frameworks/Python.framework/Versions/3.2/lib/python3.2/site-packages" else # Otherwise, use just the lib path. return lib+"python3.2/site-packages" end end def install args = ["--prefix=#{prefix}"] if ARGV.build_universal? args << "--enable-universalsdk=/" << "--with-universal-archs=intel" end if build_framework? args << "--enable-framework=#{prefix}/Frameworks" else args << "--enable-shared" unless ARGV.include? '--static' end if File.exist?( ENV['HOME']+'/.pydistutils.cfg' ) opoo 'Detected '+ENV['HOME']+'/.pydistutils.cfg which may cause trouble. (See http://bugs.python.org/issue6138)' end system "./configure", *args system "make" ENV.j1 # Installs must be serialized system "make install" # The "python3" executable is forgotten if the --framework option is used. # Make sure homebrew symlinks it to `brew --prefix`/bin. if ! (File.exist? "#{bin}/python3") ln_s "#{bin}/python3.2", "#{bin}/python3" end # Post-install, fix up the site-packages and install-scripts folders # so that user-installed Python software survives minor updates, such # as going from 3.2.2 to 3.2.3. # Remove the site-packages that Python created in its Cellar. site_packages.rmtree # Create a site-packages in the prefix. prefix_site_packages.mkpath # Symlink the prefix site-packages into the cellar. ln_s prefix_site_packages, site_packages # Tell distutils-based installers where to put scripts scripts_folder.mkpath (effective_lib/"python3.2/distutils/distutils.cfg").write <<-EOF.undent [install] install-scripts=#{scripts_folder} EOF # Install distribute. The user can then do: # $ easy_install pip # $ pip install --upgrade distribute # to get newer versions of distribute outside of Homebrew. Distribute.new.brew do system "#{bin}/python3.2", "setup.py", "install" # Symlink to easy_install3 to match python3 command. unless (scripts_folder/'easy_install3').exist? ln_s "#{scripts_folder}/easy_install", "#{scripts_folder}/easy_install3" end end end def caveats # Since right now, python 2.x is still the default (for homebrew), we # suggest only a symlink to the framework Version 3.2 and not "Current". framework_caveats = <<-EOS.undent Framework Python was installed to: #{prefix}/Frameworks/Python.framework You may want to symlink this Framework to a standard OS X location, such as: mkdir -p ~/Library/Frameworks/Python.framework/Versions ln -s "#{prefix}/Frameworks/Python.framework/Versions/3.2" ~/Library/Frameworks/Python.framework/Versions/3.2 EOS # Tk warning only for 10.6 (not for Lion) tk_caveats = <<-EOS.undent Apple's Tcl/Tk is not recommended for use with Python on Mac OS X 10.6. For more information see: http://www.python.org/download/mac/tcltk/ EOS general_caveats = <<-EOS.undent A "distutils.cfg" has been written, specifing the install-scripts folder as: #{scripts_folder} If you install Python packages via "python3 setup.py install", easy_install3, pip-3.2, any provided scripts will go into the install-scripts folder above, so you may want to add it to your PATH. Distribute has been installed, so easy_install is available. To update distribute itself outside of Homebrew: #{scripts_folder}/easy_install3 pip #{scripts_folder}/pip-3.2 install --upgrade distribute See: https://github.com/mxcl/homebrew/wiki/Homebrew-and-Python EOS s = general_caveats s += tk_caveats if not MacOS.lion? s += framework_caveats if as_framework? return s end # lib folder,taking into account whether we are a Framework build or not def effective_lib # If we're installed or installing as a Framework, then use that location. return prefix+"Frameworks/Python.framework/Versions/3.2/lib" if as_framework? # Otherwise use just 'lib' return lib end # include folder,taking into account whether we are a Framework build or not def effective_include # If we're installed or installing as a Framework, then use that location. return prefix+"Frameworks/Python.framework/Versions/3.2/include" if as_framework? # Otherwise use just 'include' return include end # The Cellar location of site-packages def site_packages effective_lib+"python3.2/site-packages" end # The HOMEBREW_PREFIX location of site-packages def prefix_site_packages HOMEBREW_PREFIX+"lib/python3.2/site-packages" end # Where distribute will install executable scripts def scripts_folder HOMEBREW_PREFIX+"share/python3" end # See: https://github.com/mxcl/homebrew/pull/10487 def test `#{bin}/python3 -c 'from decimal import Decimal; print(Decimal(4) / Decimal(2))'`.chomp == '2' end end