From d9b4fe9e5d6a3cca942ef85ffbcb7af9f959b510 Mon Sep 17 00:00:00 2001
From: "Jason \"Don\" O'Conal" <lovek323@gmail.com>
Date: Mon, 28 Oct 2013 21:10:19 +0000
Subject: [PATCH] pythonPackages.sympy: add expression

---
 pkgs/top-level/python-packages.nix | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index b0ffa1acf74..fc3eaa2679f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5678,6 +5678,23 @@ pythonPackages = modules // import ./python-packages-generated.nix {
     };
   };
 
+  sympy = buildPythonPackage rec {
+    name = "sympy-0.7.3";
+
+    src = fetchurl {
+      url    = "https://github.com/sympy/sympy/releases/download/${name}/${name}.tar.gz";
+      sha256 = "081g9gs2d1d41ipn8zr034d98cnrxvc4zsmihqmfwzirwzpcii5x";
+    };
+
+    meta = with stdenv.lib; {
+      description = "A Python library for symbolic mathematics";
+      homepage    = http://www.sympy.org/;
+      license     = "free";
+      maintainers = with maintainers; [ lovek323 ];
+      platforms   = platforms.unix;
+    };
+  };
+
   pilkit = buildPythonPackage rec {
     name = "pilkit-1.1.4";