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require 'formula'
class TkCheck < Requirement
def message; <<-EOS.undent
Tk.framework was detected in /Library/Frameworks
This can cause Python builds to fail. See:
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'
sha1 '709bd97d46050d69865d4b588c7707768dfe6711'
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' => :recommended
depends_on 'sqlite' => :recommended
depends_on 'gdbm' => :recommended
depends_on :x11 # tk.h includes X11/Xlib.h and X11/X.h
option :universal
option 'quicktest', 'Run `make quicktest` after the build'
# Skip binaries so modules will load; skip lib because it is mostly Python files
skip_clean ['bin', 'lib']
def site_packages_cellar
prefix/"Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages"
end
# The HOMEBREW_PREFIX location of site-packages.
def site_packages
HOMEBREW_PREFIX/"lib/python2.7/site-packages"
end
# Where distribute/pip will install executable scripts.
def scripts_folder
HOMEBREW_PREFIX/"share/python"
end
def effective_lib
prefix/"Frameworks/Python.framework/Versions/2.7/lib"
end
def install
args = %W[
--prefix=#{prefix}
--enable-ipv6
--datarootdir=#{share}
--datadir=#{share}
--enable-framework=#{prefix}/Frameworks
]
args << '--without-gcc' if ENV.compiler == :clang
# Don't use optimizations other than "-Os" here, because Python's distutils
# remembers (hint: `python-config --cflags`) and reuses them for C
# extensions which can break software (such as scipy 0.11 fails when
# "-msse4" is present.)
ENV.minimal_optimization
# We need to enable warnings because the configure.in uses -Werror to detect
# "whether gcc supports ParseTuple" (https://github.com/mxcl/homebrew/issues/12194)
ENV.enable_warnings
if ENV.compiler == :clang
# http://docs.python.org/devguide/setup.html#id8 suggests to disable some Warnings.
ENV.append_to_cflags '-Wno-unused-value'
ENV.append_to_cflags '-Wno-empty-body'
end
if build.universal?
args << "--enable-universalsdk=/" << "--with-universal-archs=intel"
end
# Allow sqlite3 module to load extensions:
# http://docs.python.org/library/sqlite3.html#f1
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.deparallelize # Installs must be serialized
# Tell Python not to install into /Applications (default for framework builds)
system "make", "install", "PYTHONAPPSDIR=#{prefix}"
# Demos and Tools into HOMEBREW_PREFIX/share/python
system "make", "frameworkinstallextras", "PYTHONAPPSDIR=#{share}/python"
system "make", "quicktest" if build.include? 'quicktest'
# 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_cellar.rmtree
# Create a site-packages in HOMEBREW_PREFIX/lib/python/site-packages
site_packages.mkpath
# Symlink the prefix site-packages into the cellar.
ln_s site_packages, site_packages_cellar
# 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
<<-EOS.undent
The Python framework is located at
#{prefix}/Frameworks/Python.framework
You can find the Python demo at
#{HOMEBREW_PREFIX}/share/python/Extras
You can `brew linkapps` to symlink "Idle" and the "Python Launcher".
A "distutils.cfg" has been written, specifying 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.
The site-package directory for brewed Python:
#{site_packages}
Distribute and Pip have been installed. To update them
#{scripts_folder}/pip install --upgrade distribute
#{scripts_folder}/pip install --upgrade pip
See: https://github.com/mxcl/homebrew/wiki/Homebrew-and-Python
EOS
end
def test
# Check if sqlite is ok, because we build with --enable-loadable-sqlite-extensions
# and it can occur that building sqlite silently fails if OSX's sqlite is used.
system "#{bin}/python", "-c", "import sqlite3"
# See: https://github.com/mxcl/homebrew/pull/10487
# Fixed [upstream](http://bugs.python.org/issue11149), but still nice to have.
`#{bin}/python -c 'from decimal import Decimal; print Decimal(4) / Decimal(2)'`.chomp == '2'
end
end
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