diff --git a/pkgs/development/python-modules/betamax/default.nix b/pkgs/development/python-modules/betamax/default.nix
new file mode 100644
index 000000000000..8051ed0beff5
--- /dev/null
+++ b/pkgs/development/python-modules/betamax/default.nix
@@ -0,0 +1,22 @@
+{ stdenv, buildPythonPackage, fetchPypi, requests }:
+
+buildPythonPackage rec {
+  pname = "betamax";
+  version = "0.8.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1hki1c2vs7adq7zr56wi6i5bhrkia4s2ywpv2c98ibnczz709w2v";
+  };
+
+  propagatedBuildInputs = [ requests ];
+
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    homepage = https://betamax.readthedocs.org/en/latest/;
+    description = "A VCR imitation for requests";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ pSub ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 3c283a02ddb5..7aa4c28d6da6 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -959,25 +959,7 @@ in {
     };
   };
 
-  betamax = buildPythonPackage rec {
-    name = "betamax-0.8.1";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/b/betamax/${name}.tar.gz";
-      sha256 = "1hki1c2vs7adq7zr56wi6i5bhrkia4s2ywpv2c98ibnczz709w2v";
-    };
-
-    propagatedBuildInputs = [ self.requests ];
-
-    doCheck = false;
-
-    meta = with stdenv.lib; {
-      homepage = https://betamax.readthedocs.org/en/latest/;
-      description = "A VCR imitation for requests";
-      license = licenses.asl20;
-      maintainers = with maintainers; [ pSub ];
-    };
-  };
+  betamax = callPackage ../development/python-modules/betamax {};
 
   betamax-matchers = callPackage ../development/python-modules/betamax-matchers { };