diff --git a/test/externalTests/exttest/common.py b/test/externalTests/exttest/common.py
index 53a1525e9847..8fcb44ca693c 100644
--- a/test/externalTests/exttest/common.py
+++ b/test/externalTests/exttest/common.py
@@ -87,12 +87,15 @@ def __post_init__(self):
     def selected_presets(self):
         return self.compile_only_presets + self.settings_presets
 
+
 class InvalidConfigError(Exception):
     pass
 
+
 class WrongBinaryType(Exception):
     pass
 
+
 class TestRunner(metaclass=ABCMeta):
     @staticmethod
     def on_local_test_dir(fn):
@@ -213,7 +216,9 @@ def parse_solc_version(solc_version_string):
     if solc_version_match:
         solc_full_version = solc_version_match.group(1)
     else:
-        raise RuntimeError(f"Solc version could not be found in: {solc_version_string}.")
+        raise RuntimeError(
+            f"Solc version could not be found in: {solc_version_string}."
+        )
     return solc_full_version
 
 
@@ -253,8 +258,10 @@ def setup_solc(config: TestConfig, test_dir: Path) -> (str, str):
         run_cmd("npm install")
         run_cmd("npm run build")
 
-        if mimetypes.guess_type(sc_config.binary_path)[0] != 'application/javascript':
-            raise WrongBinaryType(f"Provided soljson.js is expected to be of the type application/javascript but it is not.")
+        if mimetypes.guess_type(sc_config.binary_path)[0] != "application/javascript":
+            raise WrongBinaryType(
+                f"Provided soljson.js is expected to be of the type application/javascript but it is not."
+            )
 
         copyfile(sc_config.binary_path, solc_dir / "dist/soljson.js")
         solc_version_output = subprocess.getoutput(f"node {solc_bin} --version")
diff --git a/test/externalTests/prb-math.py b/test/externalTests/prb-math.py
index 7fc238778d03..7a6c043c433a 100755
--- a/test/externalTests/prb-math.py
+++ b/test/externalTests/prb-math.py
@@ -33,28 +33,30 @@
     try:
         args = parse_command_line("PRBMath external tests", sys.argv[1:])
 
-        runner_config = TestConfig(**{
-            "repo_url": "https://github.com/PaulRBerg/prb-math.git",
-            "ref_type": "branch",
-            "ref": "main",
-            "config_file": "foundry.toml",
-            "config_var": "config",
-            "build_dependency": "rust",
-            "compile_only_presets": [],
-            "settings_presets": [
-                "ir-optimize-evm+yul",
-                "legacy-optimize-evm-only",
-                "legacy-optimize-evm+yul",
-                "legacy-no-optimize"
-            ],
-            "evm_version": f"{CURRENT_EVM_VERSION}",
-            "solc": {
-                "binary_type": f"{args.solc_binary_type}",
-                "binary_path": f"{args.solc_binary_path}",
-                "branch": "master",
-                "install_dir": "solc/"
+        runner_config = TestConfig(
+            **{
+                "repo_url": "https://github.com/PaulRBerg/prb-math.git",
+                "ref_type": "branch",
+                "ref": "main",
+                "config_file": "foundry.toml",
+                "config_var": "config",
+                "build_dependency": "rust",
+                "compile_only_presets": [],
+                "settings_presets": [
+                    "ir-optimize-evm+yul",
+                    "legacy-optimize-evm-only",
+                    "legacy-optimize-evm+yul",
+                    "legacy-no-optimize",
+                ],
+                "evm_version": f"{CURRENT_EVM_VERSION}",
+                "solc": {
+                    "binary_type": f"{args.solc_binary_type}",
+                    "binary_path": f"{args.solc_binary_path}",
+                    "branch": "master",
+                    "install_dir": "solc/",
+                },
             }
-        })
+        )
 
         run_test(
             "PRBMath",
@@ -65,8 +67,6 @@
                 test_fn=None,
             ),
         )
-    except (
-        InvalidConfigError
-    ) as exception:
+    except InvalidConfigError as exception:
         print(f"Error while processing test: {exception}", file=sys.stderr)
         sys.exit(1)