Class Options

mypy/options.py:101–674

Options collected from flags.

class Options:
    """Options collected from flags."""

    def __init__(self) -> None:
        # Cache for clone_for_module()
        self._per_module_cache: dict[str, Options] | None = None

        # -- build options --
        self.build_type = BuildType.STANDARD
        self.python_version: tuple[int, int] = sys.version_info[:2]
        # The executable used to search for PEP 561 packages. If this is None,
        # then mypy does not search for PEP 561 packages.
        self.python_executable: str | None = sys.executable

        # When cross compiling to emscripten, we need to rely on MACHDEP because
        # sys.platform is the host build platform, not emscripten.
        MACHDEP = sysconfig.get_config_var("MACHDEP")
        if MACHDEP == "emscripten":
            self.platform = MACHDEP
        else:
            self.platform = sys.platform

        self.custom_typing_module: str | None = None
        self.custom_typeshed_dir: str | None = None
        # The abspath() version of the above, we compute it once as an optimization.
        self.abs_custom_typeshed_dir: str | None = None
        self.mypy_path: list[str] = []
        self.report_dirs: dict[str, str] = {}
        # Show errors in PEP 561 packages/site-packages modules
        self.no_silence_site_packages = False
        self.no_site_packages = False
        self.ignore_missing_imports = False
        # Is ignore_missing_imports set in a per-module section
        self.ignore_missing_imports_per_module = False
        # Typecheck modules without stubs or py.typed marker
        self.follow_untyped_imports = False
        self.follow_imports = "normal"  # normal|silent|skip|error
        # Whether to respect the follow_imports setting even for stub files.
        # Intended to be used for disabling specific stubs.
        self.follow_imports_for_stubs = False
        # PEP 420 namespace packages
        # This allows definitions of packages without __init__.py and allows packages to span
        # multiple directories. This flag affects both import discovery and the association of
        # input files/modules/packages to the relevant file and fully qualified module name.
        self.namespace_packages = True
        # Use current directory and MYPYPATH to determine fully qualified module names of files
        # passed by automatically considering their subdirectories as packages. This is only
        # relevant if namespace packages are enabled, since otherwise examining __init__.py's is
        # sufficient to determine module names for files. As a possible alternative, add a single
        # top-level __init__.py to your packages.
        self.explicit_package_bases = False
        # File names, directory names or subpaths to avoid checking
        self.exclude: list[str] = []
        self.exclude_gitignore: bool = False

        # disallow_any options
        self.disallow_any_generics = False
        self.disallow_any_unimported = False