diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index d5066d2da8f..b9343e54a2e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1608,6 +1608,8 @@ in modules // {
       sha256 = "1i6is7lv4v9by4panrd9w63m4xsmhwlp3rq4jjj3azwg5jm10940";
     };
 
+    disabled = isPy3k;
+
     meta = {
       description = "A Python library and tool for CalDAV";
 
@@ -2037,11 +2039,11 @@ in modules // {
 
   blaze = buildPythonPackage rec {
     name = "blaze-${version}";
-    version = "0.9.0";
+    version = "0.9.1";
 
     src = pkgs.fetchurl {
       url = "https://pypi.python.org/packages/source/b/blaze/${name}.tar.gz";
-      sha256 = "07h284n6fr0lvy58a6lvwwfb45sy7lggllx2y2vzzs4xrvf5k1i7";
+      sha256 = "fde4fd5733d8574345521581078a4fd89bb51ad3814eda88f1f467faa3a9784a";
     };
 
     buildInputs = with self; [ pytest ];
@@ -4202,11 +4204,11 @@ in modules // {
 
   datashape = buildPythonPackage rec {
     name = "datashape-${version}";
-    version = "0.5.0";
+    version = "0.5.1";
 
     src = pkgs.fetchurl {
       url = "https://pypi.python.org/packages/source/D/DataShape/${name}.tar.gz";
-      sha256 = "13w0rfaqpqkh30bxmx7i7kjfrfkm5maa35gj3c464wah7i2zm9wp";
+      sha256 = "21c424f11604873da9a36d4c55ef1d15cc3960cd208d7828b82315c494bff96a";
     };
 
     buildInputs = with self; [ pytest mock ];
@@ -8365,6 +8367,11 @@ in modules // {
       sha256="0nrkhcb6jdrlb6pwkvd4rycw34y3s931hjf409ij9xkjsli9fkb1";
     };
 
+    buildInputs = with self; [ lxml pytest ];
+    checkPhase = ''
+      py.test $out
+    '';
+
     meta = {
       description = "An implementation of lxml.xmlfile for the standard library";
       longDescription = ''
@@ -9952,17 +9959,18 @@ in modules // {
   };
 
   ipyparallel = buildPythonPackage rec {
-    version = "4.1.0";
+    version = "5.0.0";
     name = "ipyparallel-${version}";
 
     src = pkgs.fetchurl {
       url = "https://pypi.python.org/packages/source/i/ipyparallel/${name}.tar.gz";
-      sha256 = "c943f6b3bbabb9332336d15474969e2a7a73d5b583f9786f7b357c75e4b1709a";
+      sha256 = "ffa7e2e29fdc4844b3c1721f46b42eee5a1abe5cbb851ccf79d0f4f89b9fe21a";
     };
 
     buildInputs = with self; [ nose ];
 
-    propagatedBuildInputs = with self; [ipython_genutils decorator pyzmq ipython jupyter_client ipykernel];
+    propagatedBuildInputs = with self; [ipython_genutils decorator pyzmq ipython jupyter_client ipykernel tornado
+    ] ++ optionals (!isPy3k) [ futures ];
 
     # Requires access to cluster
     doCheck = false;
@@ -12744,11 +12752,11 @@ in modules // {
 
   odo = buildPythonPackage rec {
     name = "odo-${version}";
-    version= "0.4.0";
+    version= "0.4.2";
 
     src = pkgs.fetchurl {
       url = "https://pypi.python.org/packages/source/o/odo/${name}.tar.gz";
-      sha256 = "0xqm4zb7a7a2cbik9kn6yk0kr26n90iqj102h5wb42x6z5v4mn79";
+      sha256 = "f793df8b212994ea23ce34e90e2048d0237d3b95ecd066ef2cfbb1c2384b79e9";
     };
 
     buildInputs = with self; [ pytest ];
@@ -22499,8 +22507,11 @@ in modules // {
     };
     buildInputs = with self; [ pkgs.zeromq3 pytest tornado ];
     propagatedBuildInputs = [ self.py ];
+
+    # Disable broken test
+    # https://github.com/zeromq/pyzmq/issues/799
     checkPhase = ''
-      py.test $out/${python.sitePackages}/zmq/
+      py.test $out/${python.sitePackages}/zmq/ -k "not test_large_send"
     '';
   };