diff --git a/nixos/tests/radicale.nix b/nixos/tests/radicale.nix
index 607964255640..c81e78a8f994 100644
--- a/nixos/tests/radicale.nix
+++ b/nixos/tests/radicale.nix
@@ -28,7 +28,7 @@ let
 
 in
 
-  import ./make-test.nix ({ lib, ... }@args: {
+  import ./make-test-python.nix ({ lib, ... }@args: {
     name = "radicale";
     meta.maintainers = with lib.maintainers; [ aneeshusa infinisil ];
 
@@ -64,43 +64,59 @@ in
         newSystem = nodes.${nodeName}.config.system.build.toplevel;
       in "${newSystem}/bin/switch-to-configuration test";
     in ''
-      # Check Radicale 1 functionality
-      $radicale->succeed('${switchToConfig "radicale1"} >&2');
-      $radicale->waitForUnit('radicale.service');
-      $radicale->waitForOpenPort(${port});
-      $radicale->succeed('curl --fail http://${user}:${password}@localhost:${port}/someuser/calendar.ics/');
+      with subtest("Check Radicale 1 functionality"):
+          radicale.succeed(
+              "${switchToConfig "radicale1"} >&2"
+          )
+          radicale.wait_for_unit("radicale.service")
+          radicale.wait_for_open_port(${port})
+          radicale.succeed(
+              "curl --fail http://${user}:${password}@localhost:${port}/someuser/calendar.ics/"
+          )
 
-      # Export data in Radicale 2 format
-      $radicale->succeed('systemctl stop radicale');
-      $radicale->succeed('ls -al /tmp/collections');
-      $radicale->fail('ls -al /tmp/collections-new');
-      # Radicale exits immediately after exporting storage
-      $radicale->succeed('${switchToConfig "radicale1_export"} >&2');
-      $radicale->waitUntilFails('systemctl status radicale');
-      $radicale->succeed('ls -al /tmp/collections');
-      $radicale->succeed('ls -al /tmp/collections-new');
+      with subtest("Export data in Radicale 2 format"):
+          radicale.succeed("systemctl stop radicale")
+          radicale.succeed("ls -al /tmp/collections")
+          radicale.fail("ls -al /tmp/collections-new")
 
-      # Verify data in Radicale 2 format
-      $radicale->succeed('rm -r /tmp/collections/${user}');
-      $radicale->succeed('mv /tmp/collections-new/collection-root /tmp/collections');
-      $radicale->succeed('${switchToConfig "radicale2_verify"} >&2');
-      $radicale->waitUntilFails('systemctl status radicale');
-      my ($retcode, $logs) = $radicale->execute('journalctl -u radicale -n 10');
-      if ($retcode != 0 || index($logs, 'Verifying storage') == -1) {
-        die "Radicale 2 didn't verify storage"
-      }
-      if (index($logs, 'failed') != -1 || index($logs, 'exception') != -1) {
-        die "storage verification failed"
-      }
+      with subtest("Radicale exits immediately after exporting storage"):
+          radicale.succeed(
+              "${switchToConfig "radicale1_export"} >&2"
+          )
+          radicale.wait_until_fails("systemctl status radicale")
+          radicale.succeed("ls -al /tmp/collections")
+          radicale.succeed("ls -al /tmp/collections-new")
 
-      # Check Radicale 2 functionality
-      $radicale->succeed('${switchToConfig "radicale2"} >&2');
-      $radicale->waitForUnit('radicale.service');
-      $radicale->waitForOpenPort(${port});
-      my ($retcode, $output) = $radicale->execute('curl --fail http://${user}:${password}@localhost:${port}/someuser/calendar.ics/');
-      if ($retcode != 0 || index($output, 'VCALENDAR') == -1) {
-        die "Could not read calendar from Radicale 2"
-      }
-      $radicale->succeed('curl --fail http://${user}:${password}@localhost:${port}/.web/');
+      with subtest("Verify data in Radicale 2 format"):
+          radicale.succeed("rm -r /tmp/collections/${user}")
+          radicale.succeed("mv /tmp/collections-new/collection-root /tmp/collections")
+          radicale.succeed(
+              "${switchToConfig "radicale2_verify"} >&2"
+          )
+          radicale.wait_until_fails("systemctl status radicale")
+
+          (retcode, logs) = radicale.execute("journalctl -u radicale -n 10")
+          assert (
+              retcode == 0 and "Verifying storage" in logs
+          ), "Radicale 2 didn't verify storage"
+          assert (
+              "failed" not in logs and "exception" not in logs
+          ), "storage verification failed"
+
+      with subtest("Check Radicale 2 functionality"):
+          radicale.succeed(
+              "${switchToConfig "radicale2"} >&2"
+          )
+          radicale.wait_for_unit("radicale.service")
+          radicale.wait_for_open_port(${port})
+
+          (retcode, output) = radicale.execute(
+              "curl --fail http://${user}:${password}@localhost:${port}/someuser/calendar.ics/"
+          )
+          assert (
+              retcode == 0 and "VCALENDAR" in output
+          ), "Could not read calendar from Radicale 2"
+
+      radicale.succeed("curl --fail http://${user}:${password}@localhost:${port}/.web/")
     '';
 })