* By popular demand, restore Python 2.6.

svn path=/nixpkgs/trunk/; revision=26726

4 files changed, 233 insertions, 0 deletions

diff --git a/pkgs/development/interpreters/python/2.6/default.nix b/pkgs/development/interpreters/python/2.6/default.nix
new file mode 100644
index 000000000000..4a3c292412f1
--- /dev/null
+++ b/pkgs/development/interpreters/python/2.6/default.nix
@@ -0,0 +1,179 @@
+{ stdenv, fetchurl, zlib ? null, zlibSupport ? true, bzip2
+, sqlite, tcl, tk, x11, openssl, readline, db4, ncurses, gdbm
+, darwinArchUtility ? null, darwinSwVersUtility ? null
+}:
+
+assert zlibSupport -> zlib != null;
+assert stdenv.isDarwin -> darwinArchUtility != null;
+assert stdenv.isDarwin -> darwinSwVersUtility != null;
+
+with stdenv.lib;
+
+let
+
+  majorVersion = "2.6";
+  version = "${majorVersion}.6";
+
+  src = fetchurl {
+    url = "http://www.python.org/ftp/python/${version}/Python-${version}.tar.bz2";
+    md5 = "cf4e6881bb84a7ce6089e4a307f71f14";
+  };
+  
+  patches =
+    [ # Look in C_INCLUDE_PATH and LIBRARY_PATH for stuff.
+      ./search-path.patch
+
+      # Python recompiles a Python if the mtime stored *in* the
+      # pyc/pyo file differs from the mtime of the source file.  This
+      # doesn't work in Nix because Nix changes the mtime of files in
+      # the Nix store to 1.  So treat that as a special case.
+      ./nix-store-mtime.patch
+    ];
+
+  buildInputs =
+    optional (stdenv ? gcc && stdenv.gcc.libc != null) stdenv.gcc.libc ++
+    [ bzip2 ]
+    ++ optional zlibSupport zlib
+    ++ optionals stdenv.isDarwin [ darwinArchUtility darwinSwVersUtility ];
+
+    
+  # Build the basic Python interpreter without modules that have
+  # external dependencies.
+  python = stdenv.mkDerivation {
+    name = "python-${version}";
+    
+    inherit majorVersion version src patches buildInputs;
+
+    C_INCLUDE_PATH = concatStringsSep ":" (map (p: "${p}/include") buildInputs);
+    LIBRARY_PATH = concatStringsSep ":" (map (p: "${p}/lib") buildInputs);
+
+    configureFlags = "--enable-shared --with-threads --enable-unicode --with-wctype-functions";
+
+    preConfigure =
+      ''
+        # Purity.
+        for i in /usr /sw /opt /pkg; do
+          substituteInPlace ./setup.py --replace $i /no-such-path
+        done
+      '';
+
+    NIX_CFLAGS_COMPILE = optionalString stdenv.isDarwin "-msse2";
+
+    setupHook = ./setup-hook.sh;
+
+    postInstall =
+      ''
+        rm -rf "$out/lib/python${majorVersion}/test"
+      '';
+
+    passthru = {
+      inherit zlibSupport;
+      libPrefix = "python${majorVersion}";
+    };
+
+    enableParallelBuilding = true;
+
+    meta = {
+      homepage = "http://python.org";
+      description = "Python -- a high-level dynamically-typed programming language";
+      longDescription = ''
+        Python is a remarkably powerful dynamic programming language that
+        is used in a wide variety of application domains. Some of its key
+        distinguishing features include: clear, readable syntax; strong
+        introspection capabilities; intuitive object orientation; natural
+        expression of procedural code; full modularity, supporting
+        hierarchical packages; exception-based error handling; and very
+        high level dynamic data types.
+      '';
+      license = "GPLv2";
+      platforms = stdenv.lib.platforms.all;
+      maintainers = [ stdenv.lib.maintainers.simons ];
+    };
+  };
+
+
+  # This function builds a Python module included in the main Python
+  # distribution in a separate derivation.
+  buildInternalPythonModule =
+    { moduleName
+    , internalName ? "_" + moduleName
+    , deps
+    }:
+    stdenv.mkDerivation rec {
+      name = "python-${moduleName}-${python.version}";
+
+      inherit src patches;
+
+      buildInputs = [ python ] ++ deps;
+
+      C_INCLUDE_PATH = concatStringsSep ":" (map (p: "${p}/include") buildInputs);
+      LIBRARY_PATH = concatStringsSep ":" (map (p: "${p}/lib") buildInputs);
+
+      configurePhase = "true";
+
+      buildPhase =
+        ''
+          # Fake the build environment that setup.py expects.
+          ln -s ${python}/include/python*/pyconfig.h .
+          ln -s ${python}/lib/python*/config/Setup Modules/
+          ln -s ${python}/lib/python*/config/Setup.local Modules/
+
+          substituteInPlace setup.py --replace 'self.extensions = extensions' \
+            'self.extensions = [ext for ext in self.extensions if ext.name in ["${internalName}"]]'
+
+          python ./setup.py build_ext
+        '';
+
+      installPhase =
+        ''
+          dest=$out/lib/${python.libPrefix}/site-packages
+          mkdir -p $dest
+          cp -p $(find . -name "*.${if stdenv.isCygwin then "dll" else "so"}") $dest/
+        '';
+    };
+
+
+  # The Python modules included in the main Python distribution, built
+  # as separate derivations.
+  modules = {
+
+    bsddb = buildInternalPythonModule {
+      moduleName = "bsddb";
+      deps = [ db4 ];
+    };
+
+    curses = buildInternalPythonModule {
+      moduleName = "curses";
+      deps = [ ncurses ];
+    };
+
+    gdbm = buildInternalPythonModule {
+      moduleName = "gdbm";
+      internalName = "gdbm";
+      deps = [ gdbm ];
+    };
+
+    sqlite3 = buildInternalPythonModule {
+      moduleName = "sqlite3";
+      deps = [ sqlite ];
+    };
+
+    ssl = buildInternalPythonModule {
+      moduleName = "ssl";
+      deps = [ openssl ];
+    };
+
+    tkinter = buildInternalPythonModule {
+      moduleName = "tkinter";
+      deps = [ tcl tk x11 ];
+    };
+
+    readline = buildInternalPythonModule {
+      moduleName = "readline";
+      internalName = "readline";
+      deps = [ readline ];
+    };
+
+  };
+  
+in python // { inherit modules; }
diff --git a/pkgs/development/interpreters/python/2.6/nix-store-mtime.patch b/pkgs/development/interpreters/python/2.6/nix-store-mtime.patch
new file mode 100644
index 000000000000..83f3fea1931b
--- /dev/null
+++ b/pkgs/development/interpreters/python/2.6/nix-store-mtime.patch
@@ -0,0 +1,12 @@
+diff -ru -x '*~' Python-2.7.1-orig/Python/import.c Python-2.7.1/Python/import.c
+--- Python-2.7.1-orig/Python/import.c	2010-05-20 20:37:55.000000000 +0200
++++ Python-2.7.1/Python/import.c	2011-01-04 15:55:11.000000000 +0100
+@@ -751,7 +751,7 @@
+         return NULL;
+     }
+     pyc_mtime = PyMarshal_ReadLongFromFile(fp);
+-    if (pyc_mtime != mtime) {
++    if (pyc_mtime != mtime && mtime != 1) {
+         if (Py_VerboseFlag)
+             PySys_WriteStderr("# %s has bad mtime\n", cpathname);
+         fclose(fp);
diff --git a/pkgs/development/interpreters/python/2.6/search-path.patch b/pkgs/development/interpreters/python/2.6/search-path.patch
new file mode 100644
index 000000000000..2e7b7526c0ce
--- /dev/null
+++ b/pkgs/development/interpreters/python/2.6/search-path.patch
@@ -0,0 +1,27 @@
+diff -rc Python-2.4.4-orig/setup.py Python-2.4.4/setup.py
+*** Python-2.4.4-orig/setup.py	2006-10-08 19:41:25.000000000 +0200
+--- Python-2.4.4/setup.py	2007-05-27 16:04:54.000000000 +0200
+***************
+*** 279,288 ****
+          # Check for AtheOS which has libraries in non-standard locations
+          if platform == 'atheos':
+              lib_dirs += ['/system/libs', '/atheos/autolnk/lib']
+-             lib_dirs += os.getenv('LIBRARY_PATH', '').split(os.pathsep)
+              inc_dirs += ['/system/include', '/atheos/autolnk/include']
+-             inc_dirs += os.getenv('C_INCLUDE_PATH', '').split(os.pathsep)
+  
+          # OSF/1 and Unixware have some stuff in /usr/ccs/lib (like -ldb)
+          if platform in ['osf1', 'unixware7', 'openunix8']:
+              lib_dirs += ['/usr/ccs/lib']
+--- 279,289 ----
+          # Check for AtheOS which has libraries in non-standard locations
+          if platform == 'atheos':
+              lib_dirs += ['/system/libs', '/atheos/autolnk/lib']
+              inc_dirs += ['/system/include', '/atheos/autolnk/include']
+  
++         lib_dirs += os.getenv('LIBRARY_PATH', '').split(os.pathsep)
++         inc_dirs += os.getenv('C_INCLUDE_PATH', '').split(os.pathsep)
++         
+          # OSF/1 and Unixware have some stuff in /usr/ccs/lib (like -ldb)
+          if platform in ['osf1', 'unixware7', 'openunix8']:
+              lib_dirs += ['/usr/ccs/lib']
diff --git a/pkgs/development/interpreters/python/2.6/setup-hook.sh b/pkgs/development/interpreters/python/2.6/setup-hook.sh
new file mode 100644
index 000000000000..290525c35713
--- /dev/null
+++ b/pkgs/development/interpreters/python/2.6/setup-hook.sh
@@ -0,0 +1,15 @@
+addPythonPath() {
+    addToSearchPathWithCustomDelimiter : PYTHONPATH $1/lib/python2.6/site-packages
+}
+
+toPythonPath() {
+    local paths="$1"
+    local result=
+    for i in $paths; do
+        p="$i/lib/python2.6/site-packages"
+        result="${result}${result:+:}$p"
+    done
+    echo $result
+}
+
+envHooks=(${envHooks[@]} addPythonPath)