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require 'formula'
# 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 TkCheck < Requirement
def message; <<-EOS.undent
Tk.framework detected in /Library/Frameworks
and that can make python builds to fail.
https://github.com/mxcl/homebrew/issues/11602
EOS
end
def fatal?; false; end
def satisfied?
not File.exist? '/Library/Frameworks/Tk.framework'
end
end
class Distribute < Formula
url 'http://pypi.python.org/packages/source/d/distribute/distribute-0.6.28.tar.gz'
md5 'b400b532e33f78551e6847c1f5965e56'
end
class Pip < Formula
url 'http://pypi.python.org/packages/source/p/pip/pip-1.1.tar.gz'
md5 '62a9f08dd5dc69d76734568a6c040508'
end
class Python < Formula
homepage 'http://www.python.org/'
url 'http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2'
sha1 '842c4e2aff3f016feea3c6e992c7fa96e49c9aa0'
depends_on TkCheck.new
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']
def install
# Python requires -fwrapv for proper Decimal division with Clang. See:
# https://github.com/mxcl/homebrew/pull/10487
# http://stackoverflow.com/questions/7590137/dividing-decimals-yields-invalid-results-in-python-2-5-to-2-7
# https://trac.macports.org/changeset/87442
ENV.append_to_cflags "-fwrapv"
if build_framework? and ARGV.include? "--static"
onoe "Cannot specify both framework and static."
exit 99
end
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
# allow sqlite3 module to load extensions
inreplace "setup.py",
'sqlite_defines.append(("SQLITE_OMIT_LOAD_EXTENSION", "1"))', ''
system "./configure", *args
# HAVE_POLL is "broken" on OS X
# See: http://trac.macports.org/ticket/18376
inreplace 'pyconfig.h', /.*?(HAVE_POLL[_A-Z]*).*/, '#undef \1'
system "make"
ENV.j1 # Installs must be serialized
system "make install"
# Post-install, fix up the site-packages and install-scripts folders
# so that user-installed Python software survives minor updates, such
# as going from 2.7.0 to 2.7.1.
# 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
# This is a fix for better interoperability with pyqt. See:
# https://github.com/mxcl/homebrew/issues/6176
if not as_framework?
(bin+"pythonw").make_link bin+"python"
(bin+"pythonw2.7").make_link bin+"python2.7"
end
# Tell distutils-based installers where to put scripts
scripts_folder.mkpath
(effective_lib+"python2.7/distutils/distutils.cfg").write <<-EOF.undent
[install]
install-scripts=#{scripts_folder}
EOF
# Install distribute and pip
Distribute.new.brew { system "#{bin}/python", "setup.py", "install" }
Pip.new.brew { system "#{bin}/python", "setup.py", "install" }
end
def caveats
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:
mkdir -p ~/Library/Frameworks/Python.framework/Versions
ln -s "#{prefix}/Frameworks/Python.framework/Versions/2.7" ~/Library/Frameworks/Python.framework/Versions/2.7
ln -s ~/Library/Frameworks/Python.framework/Versions/2.7 ~/Library/Frameworks/Python.framework/Versions/Current
ln -s ~/Library/Frameworks/Python.framework/Versions/2.7/Python ~/Library/Frameworks/Python.framework/Python
ln -s ~/Library/Frameworks/Python.framework/Versions/2.7/Resources ~/Library/Frameworks/Python.framework/Resources
EOS
general_caveats = <<-EOS.undent
A "distutils.cfg" has been written to:
#{effective_lib}/python2.7/distutils
specifing the install-scripts folder as:
#{scripts_folder}
If you install Python packages via "pip install x" or "python setup.py install"
(or the outdated easy_install), 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. To update distribute itself outside of Homebrew:
#{scripts_folder}/pip install --upgrade distribute
See: https://github.com/mxcl/homebrew/wiki/Homebrew-and-Python
EOS
s = general_caveats
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/2.7/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/2.7/include" if as_framework?
# Otherwise use just 'include'
return include
end
# The Cellar location of site-packages
def site_packages
effective_lib+"python2.7/site-packages"
end
# The HOMEBREW_PREFIX location of site-packages
def prefix_site_packages
HOMEBREW_PREFIX+"lib/python2.7/site-packages"
end
# Where distribute will install executable scripts
def scripts_folder
HOMEBREW_PREFIX+"share/python"
end
def test
# See: https://github.com/mxcl/homebrew/pull/10487
`#{bin}/python -c 'from decimal import Decimal; print Decimal(4) / Decimal(2)'`.chomp == '2'
end
end
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