replaced pipx with declarated installs

configuration.nix

@@ -283,7 +283,6 @@ symbola
   flake8 # wraper for pyflakes, pycodestyle and mccabe
   isort # sort Python imports
   nose # testing and running python scripts
-  pipx # install python packages in a virtual environment
   pyflakes # checks source code for errors
   pytest # framework for writing tests
   speedtest-cli # check internet speed from the comand line
@@ -299,6 +298,30 @@ symbola
     propagatedBuildInputs =
       [ pyyaml types-pyyaml ];
   })
+  (buildPythonApplication rec {
+    pname = "classifier";
+    version = "2.0";
+    src = fetchPypi {
+      inherit pname version;
+      sha256 = "sha256-yHtc0qNZbKIkhhxrh0Zh5KWWsC/aU51WX1oEPVN9nOg=";
+    };
+    doCheck = false;
+    buildInputs = [ setuptools ];
+    propagatedBuildInputs =
+      [ arrow ];
+  })
+  (buildPythonApplication rec {
+    pname = "ffpb";
+    version = "0.4.1";
+    src = fetchPypi {
+      inherit pname version;
+      sha256 = "sha256-7eVqbLpMHS1sBw2vYS4cTtyVdnnknGtEI8190VlXflk=";
+    };
+    doCheck = false;
+    buildInputs = [ setuptools ];
+    propagatedBuildInputs =
+      [ tqdm ];
+  })
 
 ]) ++ (with pkgs.bat-extras; [
   batman # man pages