python-pyflakes: 1.3.0 -> 1.5.0

Fixes #25678

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

···
+{ stdenv, buildPythonPackage, fetchPypi, isPyPy, unittest2 }:
+
+buildPythonPackage rec {
+  pname = "pyflakes";
+  version = "1.5.0";
+  name = "${pname}-${version}";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1x1pcca4a24k4pw8x1c77sgi58cg1wl2k38mp8a25k608pzls3da";
+  };
+
+  buildInputs = [ unittest2 ];
+
+  doCheck = !isPyPy;
+
+  meta = with stdenv.lib; {
+    homepage = https://launchpad.net/pyflakes;
+    description = "A simple program which checks Python source files for errors";
+    license = licenses.mit;
+    maintainers = with maintainers; [ garbas ];
+  };
+}

pkgs/top-level/python-packages.nix

···
     };
   };
 
-  pyflakes = buildPythonPackage rec {
-    pname = "pyflakes";
-    version = "1.3.0";
-    name = "${pname}-${version}";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${name}.tar.gz";
-      sha256 = "a4f93317c97a9d9ed71d6ecfe08b68e3de9fea3f4d94dcd1d9d83ccbf929bc31";
-    };
-
-    buildInputs = with self; [ unittest2 ];
-
-    doCheck = !isPyPy;
-    force-rebuild = 1;  # fix transient test suite error at http://hydra.nixos.org/build/45083762
-
-    meta = {
-      homepage = https://launchpad.net/pyflakes;
-      description = "A simple program which checks Python source files for errors";
-      license = licenses.mit;
-      maintainers = with maintainers; [ garbas ];
-    };
-  };
+  pyflakes = callPackage ../development/python-modules/pyflakes { };
 
   pyftgl = buildPythonPackage rec {
     name = "pyftgl-0.4b";