Fix linter

Author: tobiasdiez

pyproject.toml

@@ -90,11 +90,11 @@ R = ['rpy2 >=3.3']
 extra = [
   'igraph',
   'lrcalc ~=2.1; sys_platform != "win32"',
-  'p_group_cohomology >=3.3',                                                         # Only used in tests
+  'p_group_cohomology >=3.3', # Only used in tests
   'pycosat >=0.6.3',
   'pynormaliz >=2.18; platform_machine != "aarch64" and platform_machine != "arm64"', # Not yet available for Linux aarch64
   'sage_numerical_backends_coin',
-  'symengine >= 0.6.1',                                                               # Only used in tests
+  'symengine >= 0.6.1', # Only used in tests
 ]
 giac = ['sagemath_giac']
 
@@ -237,9 +237,9 @@ ignore = [
   "E501", # Line too long - hard to avoid in doctests, and better handled by black.
 ]
 select = [
-  "E",  # pycodestyle errors - https://docs.astral.sh/ruff/rules/#error-e
-  "F",  # pyflakes - https://docs.astral.sh/ruff/rules/#pyflakes-f
-  "I",  # isort - https://docs.astral.sh/ruff/rules/#isort-i
+  "E", # pycodestyle errors - https://docs.astral.sh/ruff/rules/#error-e
+  "F", # pyflakes - https://docs.astral.sh/ruff/rules/#pyflakes-f
+  "I", # isort - https://docs.astral.sh/ruff/rules/#isort-i
   "PL", # pylint - https://docs.astral.sh/ruff/rules/#pylint-pl
 ]