diff --git a/Aliases/python2 b/Aliases/python2 index ad9356d0b23c7..8db32ddbd2cee 120000 --- a/Aliases/python2 +++ b/Aliases/python2 @@ -1 +1 @@ -../Formula/python.rb \ No newline at end of file +../Formula/python@2.rb \ No newline at end of file diff --git a/Aliases/python@2 b/Aliases/python@2 deleted file mode 120000 index ad9356d0b23c7..0000000000000 --- a/Aliases/python@2 +++ /dev/null @@ -1 +0,0 @@ -../Formula/python.rb \ No newline at end of file diff --git a/Formula/python@2.rb b/Formula/python@2.rb new file mode 100644 index 0000000000000..78a5924bee82e --- /dev/null +++ b/Formula/python@2.rb @@ -0,0 +1,395 @@ +class PythonAT2 < Formula + desc "Interpreted, interactive, object-oriented programming language" + homepage "https://www.python.org/" + url "https://www.python.org/ftp/python/2.7.14/Python-2.7.14.tar.xz" + sha256 "71ffb26e09e78650e424929b2b457b9c912ac216576e6bd9e7d204ed03296a66" + head "https://github.com/python/cpython.git", :branch => "2.7" + + keg_only :versioned_formula + + # Please don't add a wide/ucs4 option as it won't be accepted. + # More details in: https://github.com/Homebrew/homebrew/pull/32368 + option "with-quicktest", "Run `make quicktest` after the build (for devs; may fail)" + option "with-tcl-tk", "Use Homebrew's Tk instead of macOS Tk (has optional Cocoa and threads support)" + option "with-poll", "Enable select.poll, which is not fully implemented on macOS (https://bugs.python.org/issue5154)" + + # sphinx-doc depends on python, but on 10.6 or earlier python is fulfilled by + # brew, which would lead to circular dependency. + if MacOS.version > :snow_leopard + option "with-sphinx-doc", "Build HTML documentation" + depends_on "sphinx-doc" => [:build, :optional] + end + + deprecated_option "quicktest" => "with-quicktest" + deprecated_option "with-brewed-tk" => "with-tcl-tk" + + depends_on "pkg-config" => :build + depends_on "readline" => :recommended + depends_on "sqlite" => :recommended + depends_on "gdbm" => :recommended + depends_on "openssl" + depends_on "tcl-tk" => :optional + depends_on "berkeley-db@4" => :optional + + resource "setuptools" do + url "https://files.pythonhosted.org/packages/6c/54/f7e9cea6897636a04e74c3954f0d8335cc38f7d01e27eec98026b049a300/setuptools-38.5.1.zip" + sha256 "6425484c08e99a98a42209c25c3d325f749230b55284d66192784f941a7e6628" + end + + resource "pip" do + url "https://files.pythonhosted.org/packages/11/b6/abcb525026a4be042b486df43905d6893fb04f05aac21c32c638e939e447/pip-9.0.1.tar.gz" + sha256 "09f243e1a7b461f654c26a725fa373211bb7ff17a9300058b205c61658ca940d" + end + + resource "wheel" do + url "https://files.pythonhosted.org/packages/fa/b4/f9886517624a4dcb81a1d766f68034344b7565db69f13d52697222daeb72/wheel-0.30.0.tar.gz" + sha256 "9515fe0a94e823fd90b08d22de45d7bde57c90edce705b22f5e1ecf7e1b653c8" + end + + # Patch to disable the search for Tk.framework, since Homebrew's Tk is + # a plain unix build. Remove `-lX11`, too because our Tk is "AquaTk". + if build.with? "tcl-tk" + patch do + url "https://raw.githubusercontent.com/Homebrew/patches/42fcf22/python/brewed-tk-patch.diff" + sha256 "15c153bdfe51a98efe48f8e8379f5d9b5c6c4015e53d3f9364d23c8689857f09" + end + end + + def lib_cellar + prefix/"Frameworks/Python.framework/Versions/2.7/lib/python2.7" + end + + def site_packages_cellar + lib_cellar/"site-packages" + end + + # The HOMEBREW_PREFIX location of site-packages. + def site_packages + HOMEBREW_PREFIX/"lib/python2.7/site-packages" + end + + # setuptools remembers the build flags python is built with and uses them to + # build packages later. Xcode-only systems need different flags. + pour_bottle? do + reason <<~EOS + The bottle needs the Apple Command Line Tools to be installed. + You can install them, if desired, with: + xcode-select --install + EOS + satisfy { MacOS::CLT.installed? } + end + + def install + if build.with? "poll" + opoo "The given option --with-poll enables a somewhat broken poll() on macOS (https://bugs.python.org/issue5154)." + end + + # 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} + --without-ensurepip + ] + + # See upstream bug report from 22 Jan 2018 "Significant performance problems + # with Python 2.7 built with clang 3.x or 4.x" + # https://bugs.python.org/issue32616 + # https://github.com/Homebrew/homebrew-core/issues/22743 + if DevelopmentTools.clang_build_version >= 802 && + DevelopmentTools.clang_build_version < 1000 + args << "--without-computed-gotos" + end + + args << "--without-gcc" if ENV.compiler == :clang + + cflags = [] + ldflags = [] + cppflags = [] + + 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}" + cppflags << "-I#{MacOS.sdk_path}/usr/include" # find zlib + # For the Xlib.h, Python needs this header dir with the system Tk + if build.without? "tcl-tk" + cflags << "-I#{MacOS.sdk_path}/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers" + end + end + + # Avoid linking to libgcc https://code.activestate.com/lists/python-dev/112195/ + args << "MACOSX_DEPLOYMENT_TARGET=#{MacOS.version}" + + # We want our readline and openssl! This is just to outsmart the detection code, + # superenv handles that cc finds includes/libs! + inreplace "setup.py" do |s| + s.gsub! "do_readline = self.compiler.find_library_file(lib_dirs, 'readline')", + "do_readline = '#{Formula["readline"].opt_lib}/libhistory.dylib'" + s.gsub! "/usr/local/ssl", Formula["openssl"].opt_prefix + s.gsub! "/usr/include/db4", Formula["berkeley-db@4"].opt_include + end + + if build.with? "sqlite" + inreplace "setup.py" do |s| + s.gsub! "sqlite_setup_debug = False", "sqlite_setup_debug = True" + s.gsub! "for d_ in inc_dirs + sqlite_inc_paths:", + "for d_ in ['#{Formula["sqlite"].opt_include}']:" + + # Allow sqlite3 module to load extensions: + # https://docs.python.org/library/sqlite3.html#f1 + s.gsub! 'sqlite_defines.append(("SQLITE_OMIT_LOAD_EXTENSION", "1"))', "" + end + end + + # 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 && pip2 install pyenchant` + inreplace "./Lib/ctypes/macholib/dyld.py" do |f| + f.gsub! "DEFAULT_LIBRARY_FALLBACK = [", "DEFAULT_LIBRARY_FALLBACK = [ '#{opt_lib}'," + f.gsub! "DEFAULT_FRAMEWORK_FALLBACK = [", "DEFAULT_FRAMEWORK_FALLBACK = [ '#{opt_frameworks}'," + end + + if build.with? "tcl-tk" + tcl_tk = Formula["tcl-tk"].opt_prefix + cppflags << "-I#{tcl_tk}/include" + ldflags << "-L#{tcl_tk}/lib" + end + + args << "CFLAGS=#{cflags.join(" ")}" unless cflags.empty? + args << "LDFLAGS=#{ldflags.join(" ")}" unless ldflags.empty? + args << "CPPFLAGS=#{cppflags.join(" ")}" unless cppflags.empty? + + system "./configure", *args + + # HAVE_POLL is "broken" on macOS. See: + # https://trac.macports.org/ticket/18376 + # https://bugs.python.org/issue5154 + if build.without? "poll" + inreplace "pyconfig.h", /.*?(HAVE_POLL[_A-Z]*).*/, '#undef \1' + end + + system "make" + if build.with?("quicktest") || build.bottle? + system "make", "quicktest", "TESTPYTHONOPTS=-s", "TESTOPTS=-j#{ENV.make_jobs} -w" + end + + ENV.deparallelize do + # Tell Python not to install into /Applications + system "make", "install", "PYTHONAPPSDIR=#{prefix}" + system "make", "frameworkinstallextras", "PYTHONAPPSDIR=#{pkgshare}" + end + + # Fixes setting Python build flags for certain software + # See: https://github.com/Homebrew/homebrew/pull/20182 + # https://bugs.python.org/issue3588 + inreplace lib_cellar/"config/Makefile" do |s| + s.change_make_var! "LINKFORSHARED", + "-u _PyMac_Error $(PYTHONFRAMEWORKINSTALLDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)" + end + + # Any .app get a " 2" attached, so it does not conflict with python 3.x. + Dir.glob("#{prefix}/*.app") { |app| mv app, app.sub(/\.app$/, " 2.app") } + + # Prevent third-party packages from building against fragile Cellar paths + inreplace [lib_cellar/"_sysconfigdata.py", + lib_cellar/"config/Makefile", + frameworks/"Python.framework/Versions/Current/lib/pkgconfig/python-2.7.pc"], + prefix, opt_prefix + + # A fix, because python and python@2 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" + + # Symlink the pkgconfig files into lib/pkgconfig so they're accessible. + (lib/"pkgconfig").install_symlink Dir[frameworks/"Python.framework/Versions/Current/lib/pkgconfig/*"] + + # Remove the site-packages that Python created in its Cellar. + site_packages_cellar.rmtree + + (libexec/"setuptools").install resource("setuptools") + (libexec/"pip").install resource("pip") + (libexec/"wheel").install resource("wheel") + + if MacOS.version > :snow_leopard && build.with?("sphinx-doc") + cd "Doc" do + system "make", "html" + doc.install Dir["build/html/*"] + end + end + + # Remove commands shadowing system python. + { + "2to3" => "2to3-2", + "idle" => "idle2", + "pydoc" => "pydoc2", + "python" => "python2", + "python-config" => "python2-config", + "pythonw" => "pythonw2", + "smtpd.py" => "smtpd2.py", + }.each do |unversioned_name, versioned_name| + rm_f bin/unversioned_name + (libexec/"bin").install_symlink bin/versioned_name => unversioned_name + end + + # Avoid conflict with python3's unversioned man page + rm_f man1/"python.1" + end + + def post_install + # Fix up the site-packages so that user-installed Python software survives + # minor updates, such as going from 2.7.0 to 2.7.1: + + # Create a site-packages in HOMEBREW_PREFIX/lib/python2.7/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-0.9.5-py3.3.egg + rm_rf Dir["#{site_packages}/setuptools*"] + rm_rf Dir["#{site_packages}/distribute*"] + rm_rf Dir["#{site_packages}/pip[-_.][0-9]*", "#{site_packages}/pip"] + + setup_args = ["-s", "setup.py", "--no-user-cfg", "install", "--force", + "--verbose", + "--single-version-externally-managed", + "--record=installed.txt", + "--install-scripts=#{bin}", + "--install-lib=#{site_packages}"] + + (libexec/"setuptools").cd { system "#{bin}/python2", *setup_args } + (libexec/"pip").cd { system "#{bin}/python2", *setup_args } + (libexec/"wheel").cd { system "#{bin}/python2", *setup_args } + + mv bin/"wheel", bin/"wheel2" + { + "easy_install" => "easy_install-2.7", + "pip" => "pip2", + "wheel" => "wheel2", + }.each do |unversioned_name, versioned_name| + rm_f bin/unversioned_name + (libexec/"bin").install_symlink bin/versioned_name => unversioned_name + end + + # Help distutils find brewed stuff when building extensions + include_dirs = [HOMEBREW_PREFIX/"include", Formula["openssl"].opt_include] + library_dirs = [HOMEBREW_PREFIX/"lib", Formula["openssl"].opt_lib] + + if build.with? "sqlite" + include_dirs << Formula["sqlite"].opt_include + library_dirs << Formula["sqlite"].opt_lib + end + + if build.with? "tcl-tk" + include_dirs << Formula["tcl-tk"].opt_include + library_dirs << Formula["tcl-tk"].opt_lib + end + + cfg = lib_cellar/"distutils/distutils.cfg" + cfg.atomic_write <<~EOS + [install] + prefix=#{HOMEBREW_PREFIX} + + [build_ext] + include_dirs=#{include_dirs.join ":"} + library_dirs=#{library_dirs.join ":"} + EOS + end + + def sitecustomize + <<~EOS + # 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! + # + import re + import os + import sys + + if sys.version_info[0] != 2: + # 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 2.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 and reject + # paths in /System pre-emptively (#14712) + library_site = '/Library/Python/2.7/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) and + not p.startswith('/System')] + # .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/2\.7/lib/python2\.7/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/2.7/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}/python2.7' + EOS + end + + def caveats; <<~EOS + This formula installs a python2 executable to #{opt_bin} + If you wish to have this formula's python executable in your PATH then add + the following to #{shell_profile}: + export PATH="#{opt_libexec}/bin:$PATH" + + Pip and setuptools have been installed. To update them + pip2 install --upgrade pip setuptools + + You can install Python packages with + pip2 install + + They will install into the site-package directory + #{site_packages} + + See: https://docs.brew.sh/Homebrew-and-Python + EOS + 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}/python2", "-c", "import sqlite3" + # Check if some other modules import. Then the linked libs are working. + system "#{bin}/python2", "-c", "import Tkinter; root = Tkinter.Tk()" + system "#{bin}/python2", "-c", "import gdbm" + system bin/"pip2", "list", "--format=columns" + end +end