Ruff rules B017, B028, and E203

Author: cclauss

isort/api.py

@@ -199,7 +199,8 @@ def sort_stream(
                 raise ExistingSyntaxErrors(content_source)
             if config.verbose:
                 warn(
-                    f"{content_source} Python AST errors found but ignored due to Cython extension"
+                    f"{content_source} Python AST errors found but ignored due to Cython extension",
+                    stacklevel=2,
                 )
         input_stream = StringIO(file_content)
 
@@ -227,7 +228,8 @@ def sort_stream(
                 raise IntroducedSyntaxErrors(content_source)
             if config.verbose:
                 warn(
-                    f"{content_source} Python AST errors found but ignored due to Cython extension"
+                    f"{content_source} Python AST errors found but ignored due to Cython extension",
+                    stacklevel=2,
                 )
         if _internal_output != output_stream:
             output_stream.write(_internal_output.read())
@@ -494,9 +496,12 @@ def sort_file(
                     source_file.stream.close()
 
         except ExistingSyntaxErrors:
-            warn(f"{actual_file_path} unable to sort due to existing syntax errors")
+            warn(f"{actual_file_path} unable to sort due to existing syntax errors", stacklevel=2)
         except IntroducedSyntaxErrors:  # pragma: no cover
-            warn(f"{actual_file_path} unable to sort as isort introduces new syntax errors")
+            warn(
+                f"{actual_file_path} unable to sort as isort introduces new syntax errors",
+                stacklevel=2,
+            )
 
         return changed
 
@@ -599,7 +604,7 @@ def find_imports_in_file(
                 **config_kwargs,
             )
     except OSError as error:
-        warn(f"Unable to parse file {filename} due to {error}")
+        warn(f"Unable to parse file {filename} due to {error}", stacklevel=2)
 
 
 def find_imports_in_paths(

isort/main.py

@@ -102,11 +102,11 @@ def sort_imports(
             skipped = True
         return SortAttempt(incorrectly_sorted, skipped, True)
     except (OSError, ValueError) as error:
-        warn(f"Unable to parse file {file_name} due to {error}")
+        warn(f"Unable to parse file {file_name} due to {error}", stacklevel=2)
         return None
     except UnsupportedEncoding:
         if config.verbose:
-            warn(f"Encoding not supported for {file_name}")
+            warn(f"Encoding not supported for {file_name}", stacklevel=2)
         return SortAttempt(incorrectly_sorted, skipped, False)
     except ISortError as error:
         _print_hard_fail(config, message=str(error))
@@ -1079,7 +1079,7 @@ def main(argv: Optional[Sequence[str]] = None, stdin: Optional[TextIOWrapper] =
         venv = arguments["virtual_env"]
         arguments["virtual_env"] = os.path.abspath(venv)
         if not os.path.isdir(arguments["virtual_env"]):
-            warn(f"virtual_env dir does not exist: {arguments['virtual_env']}")
+            warn(f"virtual_env dir does not exist: {arguments['virtual_env']}", stacklevel=2)
 
     file_names = arguments.pop("files", [])
     if not file_names and not show_config:
@@ -1260,7 +1260,9 @@ def main(argv: Optional[Sequence[str]] = None, stdin: Optional[TextIOWrapper] =
         if num_broken and not config.quiet:
             if config.verbose:
                 for was_broken in broken:
-                    warn(f"{was_broken} was broken path, make sure it exists correctly")
+                    warn(
+                        f"{was_broken} was broken path, make sure it exists correctly", stacklevel=2
+                    )
             print(f"Broken {num_broken} paths")
 
         if num_broken > 0 and is_no_attempt:
@@ -1272,16 +1274,19 @@ def main(argv: Optional[Sequence[str]] = None, stdin: Optional[TextIOWrapper] =
         if remapped_deprecated_args:
             warn(
                 "W0502: The following deprecated single dash CLI flags were used and translated: "
-                f"{', '.join(remapped_deprecated_args)}!"
+                f"{', '.join(remapped_deprecated_args)}!",
+                stacklevel=2,
             )
         if deprecated_flags:
             warn(
                 "W0501: The following deprecated CLI flags were used and ignored: "
-                f"{', '.join(deprecated_flags)}!"
+                f"{', '.join(deprecated_flags)}!",
+                stacklevel=2,
             )
         warn(
             "W0500: Please see the 5.0.0 Upgrade guide: "
-            "https://pycqa.github.io/isort/docs/upgrade_guides/5.0.0.html"
+            "https://pycqa.github.io/isort/docs/upgrade_guides/5.0.0.html",
+            stacklevel=2,
         )
 
     if wrong_sorted_files:

isort/parse.py

@@ -451,7 +451,8 @@ def file_contents(contents: str, config: Config = DEFAULT_CONFIG) -> ParsedConte
                 if placed_module == "":
                     warn(
                         f"could not place module {import_from} of line {line} --"
-                        " Do you need to define a default section?"
+                        " Do you need to define a default section?",
+                        stacklevel=2,
                     )
 
                 if placed_module and placed_module not in imports:
@@ -569,7 +570,8 @@ def file_contents(contents: str, config: Config = DEFAULT_CONFIG) -> ParsedConte
                     if placed_module == "":
                         warn(
                             f"could not place module {module} of line {line} --"
-                            " Do you need to define a default section?"
+                            " Do you need to define a default section?",
+                            stacklevel=2,
                         )
                         imports.setdefault("", {"straight": OrderedDict(), "from": OrderedDict()})
 

isort/settings.py

@@ -339,7 +339,8 @@ def __init__(
                     "was found inside. This can happen when [settings] is used as the config "
                     "header instead of [isort]. "
                     "See: https://pycqa.github.io/isort/docs/configuration/config_files"
-                    "#custom-config-files for more information."
+                    "#custom-config-files for more information.",
+                    stacklevel=2,
                 )
         elif settings_path:
             if not os.path.exists(settings_path):
@@ -407,7 +408,8 @@ def __init__(
                             f"Default to {section_name} if unsure."
                             "\n\n"
                             "See: https://pycqa.github.io/isort/"
-                            "#custom-sections-and-ordering."
+                            "#custom-sections-and-ordering.",
+                            stacklevel=2,
                         )
                     else:
                         combined_config[section_name] = frozenset(value)
@@ -419,7 +421,8 @@ def __init__(
                             " included in `sections` config option:"
                             f" {combined_config.get('sections', SECTION_DEFAULTS)}.\n\n"
                             "See: https://pycqa.github.io/isort/"
-                            "#custom-sections-and-ordering."
+                            "#custom-sections-and-ordering.",
+                            stacklevel=2,
                         )
             if key.startswith(IMPORT_HEADING_PREFIX):
                 import_headings[key[len(IMPORT_HEADING_PREFIX) :].lower()] = str(value)
@@ -442,7 +445,8 @@ def __init__(
                 warn(
                     f"`sections` setting includes {section}, but no known_{section.lower()} "
                     "is defined. "
-                    f"The following known_SECTION config options are defined: {config_keys}."
+                    f"The following known_SECTION config options are defined: {config_keys}.",
+                    stacklevel=2,
                 )
 
         if "directory" not in combined_config:
@@ -495,7 +499,8 @@ def __init__(
                     "W0503: Deprecated config options were used: "
                     f"{', '.join(deprecated_options_used)}."
                     "Please see the 5.0.0 upgrade guide: "
-                    "https://pycqa.github.io/isort/docs/upgrade_guides/5.0.0.html"
+                    "https://pycqa.github.io/isort/docs/upgrade_guides/5.0.0.html",
+                    stacklevel=2,
                 )
 
         if known_other:
@@ -777,7 +782,10 @@ def _find_config(path: str) -> Tuple[str, Dict[str, Any]]:
                         potential_config_file, CONFIG_SECTIONS[config_file_name]
                     )
                 except Exception:
-                    warn(f"Failed to pull configuration information from {potential_config_file}")
+                    warn(
+                        f"Failed to pull configuration information from {potential_config_file}",
+                        stacklevel=2,
+                    )
                     config_data = {}
                 if config_data:
                     return (current_directory, config_data)
@@ -814,7 +822,10 @@ def find_all_configs(path: str) -> Trie:
                         potential_config_file, CONFIG_SECTIONS[config_file_name]
                     )
                 except Exception:
-                    warn(f"Failed to pull configuration information from {potential_config_file}")
+                    warn(
+                        f"Failed to pull configuration information from {potential_config_file}",
+                        stacklevel=2,
+                    )
                     config_data = {}
 
                 if config_data:

isort/setuptools_commands.py

@@ -57,6 +57,6 @@ def run(self) -> None:
                     if not api.check_file(python_file, **arguments):
                         wrong_sorted_files = True  # pragma: no cover
                 except OSError as error:  # pragma: no cover
-                    warn(f"Unable to parse file {python_file} due to {error}")
+                    warn(f"Unable to parse file {python_file} due to {error}", stacklevel=2)
         if wrong_sorted_files:
             sys.exit(1)  # pragma: no cover

pyproject.toml

@@ -147,10 +147,7 @@ dev = [
 max-line-length = 100
 # Ignore non PEP 8 compliant rules as suggested by black
 # E203: https://github.com/psf/black/blob/3fab5ade71bccf80ae0a5af76729099869adea56/docs/the_black_code_style/current_style.md#slices
-extend-ignore = [
-    "B017",
-    "E203",
-]
+extend-ignore = [ "E203" ]
 exclude = "_vendored"
 per-file-ignores = [
     "tests/unit/example_crlf_file.py:F401",
@@ -190,10 +187,7 @@ lint.select = [
     "W",
 ]
 lint.ignore = [
-    "B017",
-    "B028",
     "B904",
-    "E203",
     "E501",
     "PERF203",
     "RUF100",

tests/unit/test_io.py

@@ -4,6 +4,7 @@
 import pytest
 
 from isort import io
+from isort.exceptions import UnsupportedEncoding
 
 
 class TestFile:
@@ -15,7 +16,7 @@ def test_read(self, tmpdir):
 """
         test_file = tmpdir.join("file.py")
         test_file.write(test_file_content)
-        with pytest.raises(Exception):
+        with pytest.raises(UnicodeDecodeError):
             with io.File.read(str(test_file)) as file_handler:
                 file_handler.stream.read()
 
@@ -27,7 +28,7 @@ def test_from_content(self, tmpdir):
         assert file_obj.extension == "py"
 
     def test_open(self, tmpdir):
-        with pytest.raises(Exception):
+        with pytest.raises(FileNotFoundError):
             io.File._open("THISCANTBEAREALFILEὩὩὩὩὩὩὩὩὩὩὩὩ.ὩὩὩὩὩ")
 
         def raise_arbitrary_exception(*args, **kwargs):
@@ -39,5 +40,5 @@ def raise_arbitrary_exception(*args, **kwargs):
 
         # correctly responds to error determining encoding
         with patch("tokenize.detect_encoding", raise_arbitrary_exception):
-            with pytest.raises(Exception):
+            with pytest.raises(UnsupportedEncoding):
                 io.File._open(str(test_file))

tests/unit/test_isort.py

@@ -4337,9 +4337,8 @@ def test_settings_path_skip_issue_909(tmpdir) -> None:
 
     test_run_directory = os.getcwd()
     os.chdir(str(base_dir))
-    with pytest.raises(
-        Exception
-    ):  # without the settings path provided: the command should not skip & identify errors
+    with pytest.raises(subprocess.CalledProcessError):
+        # without the settings path provided: the command should not skip & identify errors
         subprocess.run(["isort", ".", "--check-only"], check=True)
     result = subprocess.run(
         ["isort", ".", "--check-only", "--settings-path=conf/.isort.cfg"],