diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index ac9b54ee65e..0ff115b7e27 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -364,6 +364,48 @@ in {
     };
   };
 
+  altair = buildPythonPackage rec {
+    name = "altair-1.0.0";
+
+    src = pkgs.fetchurl {
+      url = "mirror://pypi/a/altair/${name}.tar.gz";
+      sha256 = "024drhmiw8w3dl7dbal0pvnlfd3sv4n1rqywv2jb488b3fzm704r";
+    };
+
+    propagatedBuildInputs = with self; [ vega pandas ipython traitlets ];
+
+    meta = {
+      description = "A declarative statistical visualization library for Python.";
+      homepage = https://github.com/altair-viz/altair;
+      license = licenses.bsd3;
+      platforms = platforms.linux;
+      maintainers = with maintainers; [ teh ];
+    };
+  };
+  vega = buildPythonPackage rec {
+    name = "vega-0.4.4";
+
+    src = pkgs.fetchurl {
+      url = "mirror://pypi/v/vega/${name}.tar.gz";
+      sha256 = "08k92afnk0bivm07h1l5nh26xl2rfp7qn03aq17q1hr3fs5r6cdm";
+    };
+
+    propagatedBuildInputs = with self; [ jupyter_core pandas ];
+
+    meta = {
+      description = " An IPython/Jupyter widget for Vega and Vega-Lite.";
+      longDescription = ''
+        To use this you have to enter a nix-shell with vega. Then run:
+
+        jupyter nbextension install --user --py vega
+        jupyter nbextension enable --user vega
+      '';
+      homepage = https://github.com/vega/ipyvega;
+      license = licenses.bsd3;
+      platforms = platforms.linux;
+      maintainers = with maintainers; [ teh ];
+    };
+  };
   acme_0_5_0 = buildPythonPackage rec {
     version = "0.5.0";
     name = "acme-${version}";