csvkit: fix tests

Remove unneeded glibcLocales. Remove overrided agate-sql and agate-dbf,
as these overrides are not needed. Use pytestCheckHook instead of
overriding checkPhase. Add an upstream patch that fixes tests.

pkgs/tools/text/csvkit/default.nix

@@ -1,4 +1,4 @@
-{ lib, python3, glibcLocales }:
+{ lib, fetchpatch, python3 }:
 
 python3.pkgs.buildPythonApplication rec {
   pname = "csvkit";
@@ -9,36 +9,26 @@ python3.pkgs.buildPythonApplication rec {
     sha256 = "1ffmbzk4rxnl1yhqfl58v7kvl5m9cbvjm8v7xp4mvr00sgs91lvv";
   };
 
+  patches = [
+    # Fixes a failing dbf related test. Won't be needed on 1.0.6 or later.
+    (fetchpatch{
+      url = "https://github.com/wireservice/csvkit/commit/5f22e664121b13d9ff005a9206873a8f97431dca.patch";
+      sha256 = "1kg00z65x7l6dnm5nfsr5krs8m7mv23hhb1inkaqf5m5fpkpnvv7";
+    })
+  ];
+
   propagatedBuildInputs = with python3.pkgs; [
     agate
     agate-excel
-    # dbf test fail with agate-dbf-0.2.2
-    (agate-dbf.overridePythonAttrs(old: rec {
-      version = "0.2.1";
-      src = python3.pkgs.fetchPypi {
-        inherit (old) pname;
-        inherit version;
-        sha256 = "0brprva3vjypb5r9lk6zy10jazp681rxsqxzhz2lr869ir4krj80";
-      };}))
-    # sql test fail with agate-sql-0.5.4
-    (agate-sql.overridePythonAttrs(old: rec {
-      version = "0.5.3";
-      src = python3.pkgs.fetchPypi {
-        inherit (old) pname;
-        inherit version;
-        sha256 = "1d6rbahmdix7xi7ma2v86fpk5yi32q5dba5vama35w5mmn2pnyw7";
-      };}))
+    agate-dbf
+    agate-sql
     six
   ];
 
   checkInputs = with python3.pkgs; [
-    glibcLocales nose
+    nose pytestCheckHook
   ];
 
-  checkPhase = ''
-    LC_ALL="en_US.UTF-8" nosetests -e test_csvsql
-  '';
-
   meta = with lib; {
     description = "A suite of command-line tools for converting to and working with CSV";
     maintainers = with maintainers; [ vrthra ];