diff --git a/glitch/__main__.py b/glitch/__main__.py
index a9a7dd7..db97492 100644
--- a/glitch/__main__.py
+++ b/glitch/__main__.py
@@ -39,7 +39,7 @@ def __parse_and_check(
 ) -> Set[Error]:
     errors: Set[Error] = set()
     inter = parser.parse(path, type, module)
-    # Avoids problems with multiple threads (and possibly multiple files) 
+    # Avoids problems with multiple threads (and possibly multiple files)
     # sharing the same object
     analyses = deepcopy(analyses)
 
diff --git a/glitch/analysis/design/long_statement.py b/glitch/analysis/design/long_statement.py
index 6f1c60d..b8e77f3 100644
--- a/glitch/analysis/design/long_statement.py
+++ b/glitch/analysis/design/long_statement.py
@@ -11,9 +11,7 @@ def check(self, element: CodeElement, file: str) -> List[Error]:
         if isinstance(element, UnitBlock) and element.type != UnitBlockType.block:
             for i, line in enumerate(self.code_lines):
                 if len(line) > 140:
-                    error = Error(
-                        "implementation_long_statement", element, file, line
-                    )
+                    error = Error("implementation_long_statement", element, file, line)
                     error.line = i + 1
                     errors.append(error)
 
diff --git a/glitch/parsers/gha.py b/glitch/parsers/gha.py
index 76af38e..e04cfb7 100644
--- a/glitch/parsers/gha.py
+++ b/glitch/parsers/gha.py
@@ -93,7 +93,10 @@ def __parse_job(self, key: Node, value: Node, lines: List[str]) -> UnitBlock:
                         au_type = step_dict["uses"]
 
                     au = AtomicUnit(name, au_type)
-                    au.line, au.column = step.start_mark.line + 1, step.start_mark.column + 1
+                    au.line, au.column = (
+                        step.start_mark.line + 1,
+                        step.start_mark.column + 1,
+                    )
                     au.code = GithubActionsParser._get_code(step, step, lines)
 
                     for key, value in step.value:
diff --git a/glitch/tests/design/gha/test_design.py b/glitch/tests/design/gha/test_design.py
index c6c0ed2..9654958 100644
--- a/glitch/tests/design/gha/test_design.py
+++ b/glitch/tests/design/gha/test_design.py
@@ -1,7 +1,7 @@
 import unittest
 
 from glitch.analysis.design.visitor import DesignVisitor
-from glitch.analysis.rules import Error  
+from glitch.analysis.rules import Error
 from glitch.parsers.gha import GithubActionsParser
 from glitch.tech import Tech
 from glitch.repr.inter import UnitBlockType
@@ -9,7 +9,9 @@
 
 
 class TestDesign(unittest.TestCase):
-    def __help_test(self, path: str, n_errors: int, codes: List[str], lines: List[int]) -> None:
+    def __help_test(
+        self, path: str, n_errors: int, codes: List[str], lines: List[int]
+    ) -> None:
         parser = GithubActionsParser()
         inter = parser.parse(path, UnitBlockType.script, False)
         assert inter is not None
@@ -20,7 +22,7 @@ def __help_test(self, path: str, n_errors: int, codes: List[str], lines: List[in
             filter(
                 lambda e: e.code.startswith("design_")
                 or e.code.startswith("implementation_"),
-                errors
+                errors,
             )
         )
         errors = sorted(errors, key=lambda e: (e.path, e.line, e.code))