Add Nevow, a webby Python thingie.

svn path=/nixpkgs/trunk/; revision=15104

pkgs/development/python-modules/nevow/default.nix

@@ -0,0 +1,80 @@
+{ fetchurl, stdenv, python, setuptools, twisted, makeWrapper, lib }:
+
+stdenv.mkDerivation rec {
+  name = "nevow-0.9.33";
+
+  src = fetchurl {
+    url = "http://divmod.org/trac/attachment/wiki/SoftwareReleases/Nevow-0.9.33.tar.gz?format=raw";
+    sha256 = "1b6zhfxx247b60n1qi2hrawhiaah88v8igg37pf7rjkmvy2z1c6c";
+    name = "${name}.tar.gz";
+  };
+
+  buildInputs = [ python makeWrapper ];
+  propagatedBuildInputs = [ setuptools twisted ];
+
+  doCheck = true;
+
+  buildPhase     = "python setup.py build --build-base $out";
+  checkPhase     = "python runtests";
+
+  installPhase   = ''
+    ensureDir "$out/lib/python2.5/site-packages"
+
+    PYTHONPATH="$out/lib/python2.5/site-packages:$PYTHONPATH" \
+    python setup.py install --prefix="$out"
+
+    ensureDir "$out/doc/${name}"
+    cp -rv "doc/"* "$out/doc/${name}"
+
+    ${postInstall}
+  '';
+
+  /* FIXME: Wrapping programs like this is not enough:
+
+     $ ./result/bin/nit --help
+     Traceback (most recent call last):
+       File "/nix/store/p5a9qbdjqcfzqmaya8absvm5279l9wd0-nevow-0.9.33/bin/.wrapped-nit", line 4, in <module>
+         import pkg_resources
+     [...]
+     pkg_resources.DistributionNotFound: Nevow==0.9.33-r17222
+
+    Ideas welcome.  */
+  postInstall = ''
+    for i in "$out/bin/"*
+    do
+      wrapProgram "$i"                          \
+        --prefix PYTHONPATH ":"                 \
+        ${lib.concatStringsSep ":"
+           ([ "$out/lib/python2.5/site-packages/src" ] ++
+            (map (path: path + "/lib/python2.5/site-packages")
+                 (propagatedBuildInputs
+                  ++ twisted.propagatedBuildInputs)))}
+    done
+  '';
+
+  meta = {
+    description = "Nevow, a web application construction kit for Python";
+
+    longDescription = ''
+      Nevow - Pronounced as the French "nouveau", or "noo-voh", Nevow
+      is a web application construction kit written in Python.  It is
+      designed to allow the programmer to express as much of the view
+      logic as desired in Python, and includes a pure Python XML
+      expression syntax named stan to facilitate this.  However it
+      also provides rich support for designer-edited templates, using
+      a very small XML attribute language to provide bi-directional
+      template manipulation capability.
+
+      Nevow also includes formless, a declarative syntax for
+      specifying the types of method parameters and exposing these
+      methods to the web.  Forms can be rendered automatically, and
+      form posts will be validated and input coerced, rendering error
+      pages if appropriate.  Once a form post has validated
+      successfully, the method will be called with the coerced values.
+    '';
+
+    homepage = http://divmod.org/trac/wiki/DivmodNevow;
+
+    license = "BSD-style";
+  };
+}

pkgs/top-level/all-packages.nix

@@ -6377,6 +6377,10 @@ let
     setuptools = setuptools.passthru.function {inherit python;};
   });
 
+  nevow = import ../development/python-modules/nevow {
+    inherit fetchurl stdenv python setuptools twisted makeWrapper lib;
+  };
+
   numeric = import ../development/python-modules/numeric {
     inherit fetchurl stdenv python;
   };