diff --git a/bindings/python/tests/__init__.py b/bindings/python/tests/__init__.py
index 2374e81..a0f22ae 100644
--- a/bindings/python/tests/__init__.py
+++ b/bindings/python/tests/__init__.py
@@ -9,7 +9,5 @@ current_version = LooseVersion(os.uname().release.split("-")[0])
 
 if current_version < required_kernel_version:
     raise NotImplementedError(
-        "linux kernel version must be at least {} - got {}".format(
-            required_kernel_version, current_version
-        )
+        f"linux kernel version must be at least {required_kernel_version} - got {current_version}"
     )
diff --git a/bindings/python/tests/tests_chip.py b/bindings/python/tests/tests_chip.py
index 9b31e30..d5a64b3 100644
--- a/bindings/python/tests/tests_chip.py
+++ b/bindings/python/tests/tests_chip.py
@@ -25,7 +25,7 @@ class ChipConstructor(TestCase):
             pass
 
     def test_open_chip_by_link(self) -> None:
-        link = "/tmp/gpiod-py-test-link.{}".format(os.getpid())
+        link = f"/tmp/gpiod-py-test-link.{os.getpid()}"
         sim = gpiosim.Chip()
 
         with LinkGuard(sim.dev_path, link):
@@ -94,7 +94,7 @@ class ChipProperties(TestCase):
 class ChipDevPathFromLink(TestCase):
     def test_dev_path_open_by_link(self) -> None:
         sim = gpiosim.Chip()
-        link = "/tmp/gpiod-py-test-link.{}".format(os.getpid())
+        link = f"/tmp/gpiod-py-test-link.{os.getpid()}"
 
         with LinkGuard(sim.dev_path, link):
             with gpiod.Chip(link) as chip:
@@ -203,7 +203,7 @@ class StringRepresentation(TestCase):
         self.sim = None  # type: ignore[assignment]
 
     def test_repr(self) -> None:
-        self.assertEqual(repr(self.chip), 'gpiod.Chip("{}")'.format(self.sim.dev_path))
+        self.assertEqual(repr(self.chip), f'gpiod.Chip("{self.sim.dev_path}")')
 
         cmp = eval(repr(self.chip))
         self.assertEqual(self.chip.path, cmp.path)
@@ -212,7 +212,7 @@ class StringRepresentation(TestCase):
         info = self.chip.get_info()
         self.assertEqual(
             str(self.chip),
-            '<Chip path="{}" fd={} info=<ChipInfo name="{}" label="foobar" num_lines=4>>'.format(
+            '<Chip path="{}" fd={} info=<ChipInfo name="{}" label="foobar" num_lines=4>>'.format(  # noqa: UP032
                 self.sim.dev_path, self.chip.fd, info.name
             ),
         )
diff --git a/bindings/python/tests/tests_chip_info.py b/bindings/python/tests/tests_chip_info.py
index fdceda9..dbb7fd0 100644
--- a/bindings/python/tests/tests_chip_info.py
+++ b/bindings/python/tests/tests_chip_info.py
@@ -49,5 +49,5 @@ class ChipInfoStringRepresentation(TestCase):
 
             self.assertEqual(
                 str(info),
-                '<ChipInfo name="{}" label="foobar" num_lines=16>'.format(sim.name),
+                f'<ChipInfo name="{sim.name}" label="foobar" num_lines=16>',
             )
diff --git a/bindings/python/tests/tests_line_request.py b/bindings/python/tests/tests_line_request.py
index bae8815..afee644 100644
--- a/bindings/python/tests/tests_line_request.py
+++ b/bindings/python/tests/tests_line_request.py
@@ -635,9 +635,7 @@ class LineRequestStringRepresentation(TestCase):
             with chip.request_lines(config={(2, 6, 4, 1): None}) as req:
                 self.assertEqual(
                     str(req),
-                    '<LineRequest chip="{}" num_lines=4 offsets=[2, 6, 4, 1] fd={}>'.format(
-                        self.sim.name, req.fd
-                    ),
+                    f'<LineRequest chip="{self.sim.name}" num_lines=4 offsets=[2, 6, 4, 1] fd={req.fd}>',
                 )
 
     def test_str_released(self) -> None:
diff --git a/bindings/python/tests/tests_module.py b/bindings/python/tests/tests_module.py
index efd49db..7120c63 100644
--- a/bindings/python/tests/tests_module.py
+++ b/bindings/python/tests/tests_module.py
@@ -36,14 +36,14 @@ class IsGPIOChip(TestCase):
         self.assertTrue(gpiod.is_gpiochip_device(path=sim.dev_path))
 
     def test_is_gpiochip_link_good(self) -> None:
-        link = "/tmp/gpiod-py-test-link.{}".format(os.getpid())
+        link = f"/tmp/gpiod-py-test-link.{os.getpid()}"
         sim = gpiosim.Chip()
 
         with LinkGuard(sim.dev_path, link):
             self.assertTrue(gpiod.is_gpiochip_device(link))
 
     def test_is_gpiochip_link_bad(self) -> None:
-        link = "/tmp/gpiod-py-test-link.{}".format(os.getpid())
+        link = f"/tmp/gpiod-py-test-link.{os.getpid()}"
 
         with LinkGuard("/dev/null", link):
             self.assertFalse(gpiod.is_gpiochip_device(link))
