grip: move to separate file, pname

(review feedback, thanks!)

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

@@ -0,0 +1,51 @@
+{ stdenv
+, fetchFromGitHub
+, fetchpatch
+# Python bits:
+, buildPythonPackage
+, pytest
+, responses
+, docopt
+, flask
+, markdown
+, path-and-address
+, pygments
+, requests
+, tabulate
+}:
+
+buildPythonPackage rec {
+  pname = "grip";
+  version = "4.4.0";
+
+  src = fetchFromGitHub {
+    owner = "joeyespo";
+    repo = "grip";
+    rev = "v${version}";
+    sha256 = "1768n3w40qg1njkzqjyl5gkva0h31k8h250821v69imj1zimymag";
+  };
+
+  patches = [
+    # Render "front matter", used in our RFC template and elsewhere
+    (fetchpatch {
+      url = https://github.com/joeyespo/grip/pull/249.patch;
+      sha256 = "07za5iymfv647dfrvi6hhj54a96hgjyarys51zbi08c51shqyzpg";
+    })
+  ];
+
+  buildInputs = [ pytest responses ];
+
+  propagatedBuildInputs = [ docopt flask markdown path-and-address pygments requests tabulate ];
+
+  checkPhase = ''
+      export PATH="$PATH:$out/bin"
+      py.test -xm "not assumption"
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Preview GitHub Markdown files like Readme locally before committing them";
+    homepage = https://github.com/joeyespo/grip;
+    license = licenses.mit;
+    maintainers = with maintainers; [ koral ];
+  };
+}

pkgs/top-level/python-packages.nix

@@ -4894,41 +4894,7 @@ in {
     };
   };
 
-  grip = buildPythonPackage rec {
+  grip = callPackage ../development/python-modules/grip { };
-    version = "4.4.0";
-    name = "grip-${version}";
-
-    src = pkgs.fetchFromGitHub {
-      owner = "joeyespo";
-      repo = "grip";
-      rev = "v${version}";
-      sha256 = "1768n3w40qg1njkzqjyl5gkva0h31k8h250821v69imj1zimymag";
-    };
-
-    patches = [
-      # Render "front matter", used in our RFC template and elsewhere
-      (pkgs.fetchpatch {
-        url = https://github.com/joeyespo/grip/pull/249.patch;
-        sha256 = "07za5iymfv647dfrvi6hhj54a96hgjyarys51zbi08c51shqyzpg";
-      })
-    ];
-
-    buildInputs = with self; [ pytest responses ];
-
-    propagatedBuildInputs = with self; [ docopt flask markdown path-and-address pygments requests tabulate ];
-
-    checkPhase = ''
-      export PATH="$PATH:$out/bin"
-      py.test -xm "not assumption"
-    '';
-
-    meta = with stdenv.lib; {
-      description = "Preview GitHub Markdown files like Readme locally before committing them";
-      homepage = https://github.com/joeyespo/grip;
-      license = licenses.mit;
-      maintainers = with maintainers; [ koral ];
-    };
-  };
 
   gst-python = callPackage ../development/python-modules/gst-python {
     gst-plugins-base = pkgs.gst_all_1.gst-plugins-base;