python3Packages.wordfreq: fix build

- update source
- use poetry-core as build-system

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

@@ -1,5 +1,6 @@
 { lib
 , buildPythonPackage
+, poetry-core
 , regex
 , langcodes
 , ftfy
@@ -7,21 +8,27 @@
 , mecab-python3
 , jieba
 , pytestCheckHook
-, isPy27
+, pythonOlder
 , fetchFromGitHub
 }:
 
 buildPythonPackage rec {
   pname = "wordfreq";
   version = "3.0.2";
-  disabled = isPy27;
+  format = "pyproject";
 
-   src = fetchFromGitHub {
-    owner = "LuminosoInsight";
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "rspeer";
     repo = "wordfreq";
     rev = "refs/tags/v${version}";
     hash = "sha256-ANOBbQWLB35Vz6oil6QZDpsNpKHeKUJnDKA5Q9JRVdE=";
-   };
+  };
+
+  nativeBuildInputs = [
+    poetry-core
+  ];
 
   propagatedBuildInputs = [
     regex
@@ -32,10 +39,6 @@ buildPythonPackage rec {
     jieba
   ];
 
-  postPatch = ''
-    substituteInPlace setup.py --replace "regex ==" "regex >="
-  '';
-
   nativeCheckInputs = [ pytestCheckHook ];
   disabledTests = [
     # These languages require additional dictionaries that aren't packaged
@@ -46,7 +49,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "A library for looking up the frequencies of words in many languages, based on many sources of data";
-    homepage =  "https://github.com/LuminosoInsight/wordfreq/";
+    homepage =  "https://github.com/rspeer/wordfreq/";
     license = licenses.mit;
     maintainers = with maintainers; [ ixxie ];
   };