pythonPackages.pandas: 0.19.2 -> 0.20.1

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

@@ -1,8 +1,9 @@
 { buildPythonPackage
+, fetchPypi
 , python
 , stdenv
 , fetchurl
-, nose
+, pytest
 , glibcLocales
 , cython
 , dateutil
@@ -27,16 +28,16 @@ let
   inherit (stdenv) isDarwin;
 in buildPythonPackage rec {
   pname = "pandas";
-  version = "0.19.2";
+  version = "0.20.1";
   name = "${pname}-${version}";
 
-  src = fetchurl {
-    url = "mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${name}.tar.gz";
-    sha256 = "6f0f4f598c2b16746803c8bafef7c721c57e4844da752d36240c0acf97658014";
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "42707365577ef69f7c9c168ddcf045df2957595a9ee71bc13c7997eecb96b190";
   };
 
   LC_ALL = "en_US.UTF-8";
-  buildInputs = [ nose glibcLocales ] ++ optional isDarwin libcxx;
+  buildInputs = [ pytest glibcLocales ] ++ optional isDarwin libcxx;
   propagatedBuildInputs = [
     cython
     dateutil
@@ -70,14 +71,10 @@ in buildPythonPackage rec {
   '';
 
   # The flag `-A 'not network'` will disable tests that use internet.
-  # The `-e` flag disables a few problematic tests.
   checkPhase = ''
     runHook preCheck
-    # The flag `-w` provides the initial directory to search for tests.
-    # The flag `-A 'not network'` will disable tests that use internet.
-    nosetests -w $out/${python.sitePackages}/pandas --no-path-adjustment -A 'not slow and not network' \
-      --verbosity=3
-     runHook postCheck
+    py.test $out/${python.sitePackages}/pandas --skip-slow --skip-network
+    runHook postCheck
   '';
 
   meta = {