homebrew-core/Formula/python3.rb

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require 'formula'
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# This formula is for Python version 3.2.
# Python 2.7.1 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
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class Python3 < Formula
url 'http://www.python.org/ftp/python/3.2/Python-3.2.tar.bz2'
homepage 'http://www.python.org/'
md5 '92e94b5b6652b96349d6362b8337811d'
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_clean ['bin', 'lib']
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# 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
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# The HOMEBREW_PREFIX location of site-packages
# We write a .pth file in the Cellar site-packages to here
def prefix_site_packages
HOMEBREW_PREFIX+"lib/python3.2/site-packages"
end
def install
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# --with-computed-gotos requires addressable labels in C.
# Both gcc and LLVM support this, so switch it on.
args = ["--prefix=#{prefix}", "--with-computed-gotos"]
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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
system "./configure", *args
system "make"
ENV.j1 # Installs must be serialized
system "make install"
# Add the Homebrew prefix path to site-packages via a .pth
prefix_site_packages.mkpath
(site_packages+"homebrew.pth").write prefix_site_packages
end
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def caveats; <<-EOS.undent
Apple's Tcl/Tk is not recommended for use with 64-bit Python.
For more information see: http://www.python.org/download/mac/tcltk/
The site-packages folder for this Python is:
#{site_packages}
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We've added a "homebrew.pth" file to also include:
#{prefix_site_packages}
EOS
end
end