python310Packages.pystemmer: Normalize attribute & pname

Clean up derivation by removing redundant fetcher and commented out
preBuild hook.

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

@@ -9,15 +9,10 @@
  }:
 
 buildPythonPackage rec {
-  pname = "PyStemmer";
+  pname = "pystemmer";
   version = "2.2.0";
   format = "setuptools";
 
-  src' = fetchPypi {
-    inherit pname version;
-    sha256 = "sha256-4hcbkbhrscap3d8J6Mhn5Ij4vWm94H0EEKNc3O4NhXw=";
-  };
-
   src = fetchFromGitHub {
     owner = "snowballstem";
     repo = "pystemmer";
@@ -52,10 +47,6 @@ buildPythonPackage rec {
     "-L${libstemmer}/lib"
   ];
 
-  #preBuild = ''
-  #  cython src/Stemmer.pyx
-  #'';
-
   pythonImportsCheck = [
     "Stemmer"
   ];

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

@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, PyStemmer, fetchPypi }:
+{ lib, buildPythonPackage, pystemmer, fetchPypi }:
 
 buildPythonPackage rec {
   pname = "snowballstemmer";
@@ -12,7 +12,7 @@ buildPythonPackage rec {
   # No tests included
   doCheck = false;
 
-  propagatedBuildInputs = [ PyStemmer ];
+  propagatedBuildInputs = [ pystemmer ];
 
   meta = with lib; {
     description = "16 stemmer algorithms (15 + Poerter English stemmer) generated from Snowball algorithms";

pkgs/top-level/python-aliases.nix

@@ -199,6 +199,7 @@ mapAliases ({
   PyRSS2Gen = pyrss2gen; # added 2023-02-19
   pysmart-smartx = pysmart; # added 2021-10-22
   pyspotify = throw "pyspotify has been removed because Spotify stopped supporting libspotify"; # added 2022-05-29
+  PyStemmer = pystemmer; # added 2023-02-19
   pytest_6 = pytest; # added 2022-02-10
   pytestcov = pytest-cov; # added 2021-01-04
   pytest-pep8 = pytestpep8; # added 2021-01-04

pkgs/top-level/python-packages.nix

@@ -8949,7 +8949,7 @@ self: super: with self; {
     inherit (pkgs) systemd;
   };
 
-  PyStemmer = callPackage ../development/python-modules/pystemmer { };
+  pystemmer = callPackage ../development/python-modules/pystemmer { };
 
   pystray = callPackage ../development/python-modules/pystray { };