pythonPackages.gsd: freeze at 1.7.0

pkgs/development/python-modules/gsd/1.7.nix

@@ -0,0 +1,27 @@
+{ stdenv
+, buildPythonPackage
+, fetchPypi
+, numpy
+}:
+
+buildPythonPackage rec {
+  version = "1.7.0";
+  pname = "gsd";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0fpk69wachyydpk9cbs901m7hkwrrvq24ykxsrz62km9ql8lr2vp";
+  };
+
+  propagatedBuildInputs = [ numpy ];
+
+  # tests not packaged with gsd
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    homepage = https://bitbucket.org/glotzer/gsd;
+    description = "General simulation data file format";
+    license = licenses.bsd2;
+    maintainers = [ maintainers.costrouc ];
+  };
+}

pkgs/top-level/python-packages.nix

@@ -643,7 +643,10 @@ in {
     inherit (pkgs) graphviz;
   };
 
-  gsd = callPackage ../development/python-modules/gsd { };
+  gsd = if isPy27 then
+      callPackage ../development/python-modules/gsd/1.7.nix { }
+    else
+      callPackage ../development/python-modules/gsd { };
 
   gssapi = callPackage ../development/python-modules/gssapi {
     inherit (pkgs) darwin krb5Full;