pythonPackages.cachetools: Add version 2.0.1

Textacy requires a later version.

v2.0.0 introduced breaking changes, so keep two versions for other
packages.

pkgs/development/python-modules/cachetools/1.nix

@@ -0,0 +1,18 @@
+{ stdenv, buildPythonPackage, fetchPypi, isPyPy }:
+
+buildPythonPackage rec {
+  name = "${pname}-${version}";
+  pname = "cachetools";
+  version = "1.1.3";
+  disabled = isPyPy;  # a test fails
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0js7qx5pa8ibr8487lcf0x3a7w0xml0wa17snd6hjs0857kqhn20";
+  };
+
+  meta = with stdenv.lib; {
+    homepage = "https://github.com/tkem/cachetools";
+    license = licenses.mit;
+  };
+}

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

@@ -0,0 +1,18 @@
+{ stdenv, buildPythonPackage, fetchPypi, isPyPy }:
+
+buildPythonPackage rec {
+  name = "${pname}-${version}";
+  pname = "cachetools";
+  version = "2.0.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0pdw2fr29pxlyn1g5fhdrrqbpn0iw062nv716ngdqvdx7hnizq7d";
+  };
+
+  meta = with stdenv.lib; {
+    description = "Extensible memoizing collections and decorators";
+    homepage = "https://github.com/tkem/cachetools";
+    license = licenses.mit;
+  };
+}