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@tdsmith
Created February 23, 2015 18:56
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class Python3 < Formula
homepage "https://www.python.org/"
url "https://www.python.org/ftp/python/3.4.2/Python-3.4.2.tar.xz"
sha1 "0727d8a8498733baabe6f51632b9bab0cbaa9ada"
revision 1
bottle do
revision 5
sha1 "65ab2f902152ce86f23eecbb56d9a9fd60b3c22e" => :yosemite
sha1 "89ed42bd3070f1c2efca049d150b72f7f5cf3fe7" => :mavericks
sha1 "f2df5040f65cd509bbd33666fe09eb329d2b81bc" => :mountain_lion
end
head "https://hg.python.org/cpython", :using => :hg
devel do
url "https://www.python.org/ftp/python/3.5.0/Python-3.5.0a1.tgz"
sha1 "e9441525f37d65623f5efab0b7ca726ab52b1fb9"
end
option :universal
option "quicktest", "Run `make quicktest` after the build"
option "with-brewed-tk", "Use Homebrew's Tk (has optional Cocoa and threads support)"
depends_on "pkg-config" => :build
depends_on "readline" => :recommended
depends_on "sqlite" => :recommended
depends_on "gdbm" => :recommended
depends_on "openssl"
depends_on "xz" => :recommended # for the lzma module added in 3.3
depends_on "homebrew/dupes/tcl-tk" if build.with? "brewed-tk"
depends_on :x11 if build.with? "brewed-tk" and Tab.for_name("tcl-tk").with? "x11"
skip_clean "bin/pip3", "bin/pip-3.4", "bin/pip-3.5"
skip_clean "bin/easy_install3", "bin/easy_install-3.4", "bin/easy_install-3.5"
resource "setuptools" do
url "https://pypi.python.org/packages/source/s/setuptools/setuptools-12.0.5.tar.gz"
sha1 "cd49661e090a397d77c690f7f2d06852b7086be9"
end
resource "pip" do
url "https://pypi.python.org/packages/source/p/pip/pip-6.0.8.tar.gz"
sha1 "bd59a468f21b3882a6c9d3e189d40c7ba1e1b9bd"
end
patch :DATA if build.with? "brewed-tk"
def site_packages_cellar
prefix/"Frameworks/Python.framework/Versions/#{xy}/lib/python#{xy}/site-packages"
end
# The HOMEBREW_PREFIX location of site-packages.
def site_packages
HOMEBREW_PREFIX/"lib/python#{xy}/site-packages"
end
fails_with :llvm do
build 2336
cause <<-EOS.undent
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
python.exe(14122) malloc: *** mmap(size=7310873954244194304) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
Could not import runpy module
make: *** [pybuilddir.txt] Segmentation fault: 11
EOS
end
# setuptools remembers the build flags python is built with and uses them to
# build packages later. Xcode-only systems need different flags.
def pour_bottle?
MacOS::CLT.installed?
end
def install
# Unset these so that installing pip and setuptools puts them where we want
# and not into some other Python the user has installed.
ENV["PYTHONHOME"] = nil
ENV["PYTHONPATH"] = nil
args = %W[
--prefix=#{prefix}
--enable-ipv6
--datarootdir=#{share}
--datadir=#{share}
--enable-framework=#{frameworks}
]
args << "--without-gcc" if ENV.compiler == :clang
distutils_fix_superenv(args)
if build.universal?
ENV.universal_binary
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"))', 'pass') if build.with? "sqlite"
# Allow python modules to use ctypes.find_library to find homebrew's stuff
# even if homebrew is not a /usr/local/lib. Try this with:
# `brew install enchant && pip install pyenchant`
inreplace "./Lib/ctypes/macholib/dyld.py" do |f|
f.gsub! 'DEFAULT_LIBRARY_FALLBACK = [', "DEFAULT_LIBRARY_FALLBACK = [ '#{HOMEBREW_PREFIX}/lib',"
f.gsub! 'DEFAULT_FRAMEWORK_FALLBACK = [', "DEFAULT_FRAMEWORK_FALLBACK = [ '#{HOMEBREW_PREFIX}/Frameworks',"
end
if build.with? "brewed-tk"
tcl_tk = Formula["tcl-tk"].opt_prefix
ENV.append "CPPFLAGS", "-I#{tcl_tk}/include"
ENV.append "LDFLAGS", "-L#{tcl_tk}/lib"
end
system "./configure", *args
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
system "make", "frameworkinstallextras", "PYTHONAPPSDIR=#{share}/python3"
system "make", "quicktest" if build.include? "quicktest"
# Any .app get a " 3" attached, so it does not conflict with python 2.x.
Dir.glob("#{prefix}/*.app") { |app| mv app, app.sub(".app", " 3.app") }
# A fix, because python and python3 both want to install Python.framework
# and therefore we can't link both into HOMEBREW_PREFIX/Frameworks
# https://github.com/Homebrew/homebrew/issues/15943
["Headers", "Python", "Resources"].each{ |f| rm(prefix/"Frameworks/Python.framework/#{f}") }
rm prefix/"Frameworks/Python.framework/Versions/Current"
# Remove 2to3 because python2 also installs it
rm bin/"2to3"
# Remove the site-packages that Python created in its Cellar.
site_packages_cellar.rmtree
%w[setuptools pip].each do |r|
(libexec/r).install resource(r)
end
end
def post_install
# Fix up the site-packages so that user-installed Python software survives
# minor updates, such as going from 3.3.2 to 3.3.3:
# Create a site-packages in HOMEBREW_PREFIX/lib/python#{xy}/site-packages
site_packages.mkpath
# Symlink the prefix site-packages into the cellar.
site_packages_cellar.unlink if site_packages_cellar.exist?
site_packages_cellar.parent.install_symlink site_packages
# Write our sitecustomize.py
rm_rf Dir["#{site_packages}/sitecustomize.py[co]"]
(site_packages/"sitecustomize.py").atomic_write(sitecustomize)
# Remove old setuptools installations that may still fly around and be
# listed in the easy_install.pth. This can break setuptools build with
# zipimport.ZipImportError: bad local file header
# setuptools-0.9.8-py3.3.egg
rm_rf Dir["#{site_packages}/setuptools*"]
rm_rf Dir["#{site_packages}/distribute*"]
%w[setuptools pip].each do |pkg|
(libexec/pkg).cd do
system bin/"python3", "-s", "setup.py", "--no-user-cfg", "install",
"--force", "--verbose", "--install-scripts=#{bin}",
"--install-lib=#{site_packages}"
end
end
rm_rf [bin/"pip", bin/"easy_install"]
# post_install happens after link
%W[pip3 pip#{xy} easy_install-#{xy}].each do |e|
(HOMEBREW_PREFIX/"bin").install_symlink bin/e
end
# And now we write the distutils.cfg
cfg = prefix/"Frameworks/Python.framework/Versions/#{xy}/lib/python#{xy}/distutils/distutils.cfg"
cfg.atomic_write <<-EOF.undent
[global]
verbose=1
[install]
prefix=#{HOMEBREW_PREFIX}
EOF
end
def xy
ohai "head? #{build.head?} stable? #{build.stable?}"
build.head? ? "3.5" : version.to_s.slice(/(3.\d)/)
end
def distutils_fix_superenv(args)
# To allow certain Python bindings to find brewed software (and sqlite):
sqlite = Formula["sqlite"].opt_prefix
cflags = "CFLAGS=-I#{HOMEBREW_PREFIX}/include -I#{sqlite}/include"
ldflags = "LDFLAGS=-L#{HOMEBREW_PREFIX}/lib -L#{sqlite}/lib"
unless MacOS::CLT.installed?
# Help Python's build system (setuptools/pip) to build things on Xcode-only systems
# The setup.py looks at "-isysroot" to get the sysroot (and not at --sysroot)
cflags += " -isysroot #{MacOS.sdk_path}"
ldflags += " -isysroot #{MacOS.sdk_path}"
args << "CPPFLAGS=-I#{MacOS.sdk_path}/usr/include" # find zlib
if build.without? "brewed-tk"
cflags += " -I#{MacOS.sdk_path}/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers"
end
end
args << cflags
args << ldflags
# Avoid linking to libgcc http://code.activestate.com/lists/python-dev/112195/
args << "MACOSX_DEPLOYMENT_TARGET=#{MacOS.version}"
# We want our readline! This is just to outsmart the detection code,
# superenv makes cc always find includes/libs!
inreplace "setup.py",
"do_readline = self.compiler.find_library_file(lib_dirs, 'readline')",
"do_readline = '#{Formula["readline"].opt_lib}/libhistory.dylib'"
end
def sitecustomize
<<-EOF.undent
# This file is created by Homebrew and is executed on each python startup.
# Don't print from here, or else python command line scripts may fail!
# <https://github.com/Homebrew/homebrew/blob/master/share/doc/homebrew/Homebrew-and-Python.md>
import re
import os
import sys
if sys.version_info[0] != 3:
# This can only happen if the user has set the PYTHONPATH for 3.x and run Python 2.x or vice versa.
# Every Python looks at the PYTHONPATH variable and we can't fix it here in sitecustomize.py,
# because the PYTHONPATH is evaluated after the sitecustomize.py. Many modules (e.g. PyQt4) are
# built only for a specific version of Python and will fail with cryptic error messages.
# In the end this means: Don't set the PYTHONPATH permanently if you use different Python versions.
exit('Your PYTHONPATH points to a site-packages dir for Python 3.x but you are running Python ' +
str(sys.version_info[0]) + '.x!\\n PYTHONPATH is currently: "' + str(os.environ['PYTHONPATH']) + '"\\n' +
' You should `unset PYTHONPATH` to fix this.')
# Only do this for a brewed python:
if os.path.realpath(sys.executable).startswith('#{rack}'):
# Shuffle /Library site-packages to the end of sys.path
library_site = '/Library/Python/#{xy}/site-packages'
library_packages = [p for p in sys.path if p.startswith(library_site)]
sys.path = [p for p in sys.path if not p.startswith(library_site)]
# .pth files have already been processed so don't use addsitedir
sys.path.extend(library_packages)
# the Cellar site-packages is a symlink to the HOMEBREW_PREFIX
# site_packages; prefer the shorter paths
long_prefix = re.compile(r'#{rack}/[0-9\._abrc]+/Frameworks/Python\.framework/Versions/#{xy}/lib/python#{xy}/site-packages')
sys.path = [long_prefix.sub('#{site_packages}', p) for p in sys.path]
# LINKFORSHARED (and python-config --ldflags) return the
# full path to the lib (yes, "Python" is actually the lib, not a
# dir) so that third-party software does not need to add the
# -F/#{HOMEBREW_PREFIX}/Frameworks switch.
try:
from _sysconfigdata import build_time_vars
build_time_vars['LINKFORSHARED'] = '-u _PyMac_Error #{opt_prefix}/Frameworks/Python.framework/Versions/#{xy}/Python'
except:
pass # remember: don't print here. Better to fail silently.
# Set the sys.executable to use the opt_prefix
sys.executable = '#{opt_bin}/python#{xy}'
EOF
end
def caveats
text = <<-EOS.undent
Pip has been installed. To update it
pip3 install --upgrade pip
You can install Python packages with
pip3 install <package>
They will install into the site-package directory
#{site_packages}
See: https://github.com/Homebrew/homebrew/blob/master/share/doc/homebrew/Homebrew-and-Python.md
EOS
# Tk warning only for 10.6
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
text += tk_caveats unless MacOS.version >= :lion
return text
end
test do
# 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#{xy}", "-c", "import sqlite3"
# Check if some other modules import. Then the linked libs are working.
system "#{bin}/python#{xy}", "-c", "import tkinter; root = tkinter.Tk()"
system bin/"pip3", "list"
end
end
__END__
# Homebrew's tcl-tk is build in a standard unix fashion (due to link errors)
# and we have to stop python from searching for frameworks and link against
# X11.
diff --git a/setup.py b/setup.py
index d4183d4..9f69520 100644
--- a/setup.py
+++ b/setup.py
@@ -1623,9 +1623,6 @@ class PyBuildExt(build_ext):
# Rather than complicate the code below, detecting and building
# AquaTk is a separate method. Only one Tkinter will be built on
# Darwin - either AquaTk, if it is found, or X11 based Tk.
- if (host_platform == 'darwin' and
- self.detect_tkinter_darwin(inc_dirs, lib_dirs)):
- return
# Assume we haven't found any of the libraries or include files
# The versions with dots are used on Unix, and the versions without
@@ -1671,21 +1668,6 @@ class PyBuildExt(build_ext):
if dir not in include_dirs:
include_dirs.append(dir)
- # Check for various platform-specific directories
- if host_platform == 'sunos5':
- include_dirs.append('/usr/openwin/include')
- added_lib_dirs.append('/usr/openwin/lib')
- elif os.path.exists('/usr/X11R6/include'):
- include_dirs.append('/usr/X11R6/include')
- added_lib_dirs.append('/usr/X11R6/lib64')
- added_lib_dirs.append('/usr/X11R6/lib')
- elif os.path.exists('/usr/X11R5/include'):
- include_dirs.append('/usr/X11R5/include')
- added_lib_dirs.append('/usr/X11R5/lib')
- else:
- # Assume default location for X11
- include_dirs.append('/usr/X11/include')
- added_lib_dirs.append('/usr/X11/lib')
# If Cygwin, then verify that X is installed before proceeding
if host_platform == 'cygwin':
@@ -1710,10 +1692,6 @@ class PyBuildExt(build_ext):
if host_platform in ['aix3', 'aix4']:
libs.append('ld')
- # Finally, link with the X11 libraries (not appropriate on cygwin)
- if host_platform != "cygwin":
- libs.append('X11')
-
ext = Extension('_tkinter', ['_tkinter.c', 'tkappinit.c'],
define_macros=[('WITH_APPINIT', 1)] + defs,
include_dirs = include_dirs,
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