chore: cleaner exception tracebacks

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

bin/run_example_ci_configs.py

@@ -81,7 +81,8 @@ def ci_service_for_config_file(config_file):
         if service.name == service_name:
             return service
 
-    raise ValueError(f"unknown ci service for config file {config_file}")
+    msg = f"unknown ci service for config file {config_file}"
+    raise ValueError(msg)
 
 
 @click.command()
@@ -100,7 +101,8 @@ def run_example_ci_configs(config_files=None):
     for config_file in config_files:
         service = ci_service_for_config_file(config_file)
         if service.name in configs_by_service:
-            raise Exception("You cannot specify more than one config per CI service")
+            msg = "You cannot specify more than one config per CI service"
+            raise Exception(msg)
         configs_by_service[service.name] = config_file
 
     if git_repo_has_changes():

bin/update_pythons.py

@@ -141,7 +141,8 @@ class PyPyVersions:
         releases = [r for r in releases if self.get_arch_file(r)]
 
         if not releases:
-            raise RuntimeError(f"PyPy Win {self.arch} not found for {spec}! {self.releases}")
+            msg = f"PyPy Win {self.arch} not found for {spec}! {self.releases}"
+            raise RuntimeError(msg)
 
         version_arch = "win32" if self.arch == "32" else "win_amd64"
 
@@ -159,13 +160,15 @@ class PyPyVersions:
 
     def update_version_macos(self, spec: Specifier) -> ConfigMacOS:
         if self.arch != "64":
-            raise RuntimeError("Other archs not supported yet on macOS")
+            msg = "Other archs not supported yet on macOS"
+            raise RuntimeError(msg)
 
         releases = [r for r in self.releases if spec.contains(r["python_version"])]
         releases = sorted(releases, key=lambda r: r["pypy_version"])  # type: ignore[no-any-return]
 
         if not releases:
-            raise RuntimeError(f"PyPy macOS {self.arch} not found for {spec}!")
+            msg = f"PyPy macOS {self.arch} not found for {spec}!"
+            raise RuntimeError(msg)
 
         release = releases[-1]
         version = release["python_version"]

cibuildwheel/__main__.py

@@ -149,7 +149,8 @@ def main() -> None:
         try:
             (project_dir,) = temp_dir.iterdir()
         except ValueError:
-            raise SystemExit("invalid sdist: didn't contain a single dir") from None
+            msg = "invalid sdist: didn't contain a single dir"
+            raise SystemExit(msg) from None
 
         # This is now the new package dir
         args.package_dir = project_dir.resolve()

cibuildwheel/bashlex_eval.py

@@ -32,7 +32,8 @@ def evaluate(
     command_node = bashlex.parsesingle(value)
 
     if len(command_node.parts) != 1:
-        raise ValueError(f'"{value}" has too many parts')
+        msg = f"{value!r} has too many parts"
+        raise ValueError(msg)
 
     value_word_node = command_node.parts[0]
 
@@ -54,7 +55,8 @@ def evaluate_node(node: bashlex.ast.node, context: NodeExecutionContext) -> str:
     elif node.kind == "parameter":
         return evaluate_parameter_node(node, context=context)
     else:
-        raise ValueError(f'Unsupported bash construct: "{node.kind}"')
+        msg = f"Unsupported bash construct: {node.kind!r}"
+        raise ValueError(msg)
 
 
 def evaluate_word_node(node: bashlex.ast.node, context: NodeExecutionContext) -> str:
@@ -65,10 +67,8 @@ def evaluate_word_node(node: bashlex.ast.node, context: NodeExecutionContext) ->
         part_value = evaluate_node(part, context=context)
 
         if part_string not in value:
-            raise RuntimeError(
+            msg = f"bash parse failed. part {part_string!r} not found in {value!r}. Word was {node.word!r}. Full input was {context.input!r}"
-                f'bash parse failed. part "{part_string}" not found in "{value}". '
+            raise RuntimeError(msg)
-                f'Word was "{node.word}". Full input was "{context.input}"'
-            )
 
         value = value.replace(part_string, part_value, 1)
 
@@ -95,9 +95,11 @@ def evaluate_nodes_as_compound_command(
             result += evaluate_command_node(node, context=context)
         elif node.kind == "operator":
             if node.op != ";":
-                raise ValueError(f'Unsupported bash operator: "{node.op}"')
+                msg = f"Unsupported bash operator: {node.op!r}"
+                raise ValueError(msg)
         else:
-            raise ValueError(f'Unsupported bash node in compound command: "{node.kind}"')
+            msg = f"Unsupported bash node in compound command: {node.kind!r}"
+            raise ValueError(msg)
 
     return result
 

cibuildwheel/functools_cached_property_38.py

@@ -21,10 +21,8 @@ class cached_property(Generic[_T]):
         if self.attrname is None:
             self.attrname = name
         elif name != self.attrname:
-            raise TypeError(
+            msg = "Cannot assign the same cached_property to two different names ({self.attrname!r} and {name!r})."
-                "Cannot assign the same cached_property to two different names "
+            raise TypeError(msg)
-                f"({self.attrname!r} and {name!r})."
-            )
 
     @overload
     def __get__(self, instance: None, owner: type[Any] | None = ...) -> cached_property[_T]:
@@ -38,9 +36,8 @@ class cached_property(Generic[_T]):
         if instance is None:
             return self
         if self.attrname is None:
-            raise TypeError(
+            msg = "Cannot use cached_property instance without calling __set_name__ on it."
-                "Cannot use cached_property instance without calling __set_name__ on it."
+            raise TypeError(msg)
-            )
         try:
             cache = instance.__dict__
         except AttributeError:  # not all objects have __dict__ (e.g. class defines slots)

cibuildwheel/linux.py

@@ -367,7 +367,8 @@ def build(options: Options, tmp_path: Path) -> None:  # pylint: disable=unused-a
     cwd = Path.cwd()
     abs_package_dir = options.globals.package_dir.resolve()
     if cwd != abs_package_dir and cwd not in abs_package_dir.parents:
-        raise Exception("package_dir must be inside the working directory")
+        msg = "package_dir must be inside the working directory"
+        raise Exception(msg)
 
     container_project_path = PurePosixPath("/project")
     container_package_dir = container_project_path / abs_package_dir.relative_to(cwd)

cibuildwheel/logger.py

@@ -197,14 +197,16 @@ def build_description_from_identifier(identifier: str) -> str:
     elif python_interpreter == "pp":
         build_description += "PyPy"
     else:
-        raise Exception("unknown python")
+        msg = "unknown python {python_interpreter!r}"
+        raise Exception(msg)
 
     build_description += f" {python_version[0]}.{python_version[1:]} "
 
     try:
         build_description += PLATFORM_IDENTIFIER_DESCRIPTIONS[platform_identifier]
     except KeyError as e:
-        raise Exception("unknown platform") from e
+        msg = f"unknown platform {platform_identifier!r}"
+        raise Exception(msg) from e
 
     return build_description
 

cibuildwheel/macos.py

@@ -146,7 +146,8 @@ def setup_python(
     elif implementation_id.startswith("pp"):
         base_python = install_pypy(tmp, python_configuration.url)
     else:
-        raise ValueError("Unknown Python implementation")
+        msg = "Unknown Python implementation"
+        raise ValueError(msg)
     assert base_python.exists()
 
     log.step("Setting up build environment...")
@@ -466,7 +467,8 @@ def build(options: Options, tmp_path: Path) -> None:
                                 )
                             )
                         else:
-                            raise RuntimeError("unreachable")
+                            msg = "unreachable"
+                            raise RuntimeError(msg)
 
                         # skip this test
                         continue

cibuildwheel/oci_container.py

@@ -58,7 +58,8 @@ class OCIContainer:
         engine: ContainerEngine = "docker",
     ):
         if not image:
-            raise ValueError("Must have a non-empty image to run.")
+            msg = "Must have a non-empty image to run."
+            raise ValueError(msg)
 
         self.image = image
         self.simulate_32_bit = simulate_32_bit

cibuildwheel/options.py

@@ -137,7 +137,8 @@ def _dig_first(*pairs: tuple[Mapping[str, Setting], str], ignore_empty: bool = F
     _dig_first((dict1, "key1"), (dict2, "key2"), ...)
     """
     if not pairs:
-        raise ValueError("pairs cannot be empty")
+        msg = "pairs cannot be empty"
+        raise ValueError(msg)
 
     for dict_like, key in pairs:
         if key in dict_like:
@@ -207,13 +208,15 @@ class OptionsReader:
 
         if config_overrides is not None:
             if not isinstance(config_overrides, list):
-                raise ConfigOptionError("'tool.cibuildwheel.overrides' must be a list")
+                msg = "'tool.cibuildwheel.overrides' must be a list"
+                raise ConfigOptionError(msg)
 
             for config_override in config_overrides:
                 select = config_override.pop("select", None)
 
                 if not select:
-                    raise ConfigOptionError("'select' must be set in an override")
+                    msg = "'select' must be set in an override"
+                    raise ConfigOptionError(msg)
 
                 if isinstance(select, list):
                     select = " ".join(select)
@@ -327,14 +330,16 @@ class OptionsReader:
 
         if isinstance(result, dict):
             if table is None:
-                raise ConfigOptionError(f"{name!r} does not accept a table")
+                msg = f"{name!r} does not accept a table"
+                raise ConfigOptionError(msg)
             return table["sep"].join(
                 item for k, v in result.items() for item in _inner_fmt(k, v, table["item"])
             )
 
         if isinstance(result, list):
             if sep is None:
-                raise ConfigOptionError(f"{name!r} does not accept a list")
+                msg = f"{name!r} does not accept a list"
+                raise ConfigOptionError(msg)
             return sep.join(result)
 
         if isinstance(result, int):

cibuildwheel/windows.py

@@ -137,7 +137,8 @@ def setup_python(
         assert python_configuration.url is not None
         base_python = install_pypy(tmp, python_configuration.arch, python_configuration.url)
     else:
-        raise ValueError("Unknown Python implementation")
+        msg = "Unknown Python implementation"
+        raise ValueError(msg)
     assert base_python.exists()
 
     log.step("Setting up build environment...")

test/test_dependency_versions.py

@@ -108,7 +108,8 @@ def test_pinned_versions(tmp_path, python_version, build_frontend_env):
             w for w in utils.expected_wheels("spam", "0.1.0") if "-cp39" in w or "-pp39" in w
         ]
     else:
-        raise ValueError("unhandled python version")
+        msg = "unhandled python version"
+        raise ValueError(msg)
 
     assert set(actual_wheels) == set(expected_wheels)
 

test/utils.py

@@ -23,7 +23,8 @@ elif sys.platform.startswith("darwin"):
 elif sys.platform in ["win32", "cygwin"]:
     platform = "windows"
 else:
-    raise Exception("Unsupported platform")
+    msg = f"Unsupported platform {sys.platform!r}"
+    raise Exception(msg)
 
 
 def cibuildwheel_get_build_identifiers(project_path, env=None, *, prerelease_pythons=False):
@@ -210,7 +211,8 @@ def expected_wheels(
                 )
 
         else:
-            raise Exception("unsupported platform")
+            msg = f"Unsupported platform {platform!r}"
+            raise Exception(msg)
 
         for platform_tag in platform_tags:
             wheels.append(f"{package_name}-{package_version}-{python_abi_tag}-{platform_tag}.whl")

unit_test/main_tests/conftest.py

@@ -31,7 +31,8 @@ def mock_protection(monkeypatch):
     """
 
     def fail_on_call(*args, **kwargs):
-        raise RuntimeError("This should never be called")
+        msg = "This should never be called"
+        raise RuntimeError(msg)
 
     def ignore_call(*args, **kwargs):
         pass

unit_test/main_tests/main_options_test.py

@@ -126,7 +126,8 @@ def get_default_repair_command(platform):
     elif platform == "windows":
         return ""
     else:
-        raise ValueError("Unknown platform", platform)
+        msg = f"Unknown platform: {platform!r}"
+        raise ValueError(msg)
 
 
 @pytest.mark.parametrize("repair_command", [None, "repair", "repair -w {dest_dir} {wheel}"])

unit_test/option_prepare_test.py

@@ -19,7 +19,8 @@ ALL_IDS = {"cp36", "cp37", "cp38", "cp39", "cp310", "cp311", "pp37", "pp38", "pp
 @pytest.fixture
 def mock_build_container(monkeypatch):
     def fail_on_call(*args, **kwargs):
-        raise RuntimeError("This should never be called")
+        msg = "This should never be called"
+        raise RuntimeError(msg)
 
     def ignore_call(*args, **kwargs):
         pass