Initial commit

sample/params.py

@@ -0,0 +1,31 @@
+import argparse
+import dataclasses
+import typing
+
+from . import PKG_NAME
+
+
+@dataclasses.dataclass(frozen=True, slots=True)
+class Parameters:
+    debug: bool = False
+    quiet: bool = False
+
+    @classmethod
+    def from_namespace(cls, args: argparse.Namespace) -> Parameters:
+        return Parameters(**vars(args))
+
+
+def parse_parameters(args: typing.Sequence[str]) -> Parameters:
+    default_values = Parameters()
+    parser = argparse.ArgumentParser(
+        PKG_NAME,
+        suggest_on_error=True,
+    )
+    parser.add_argument(
+        "--debug", action=argparse.BooleanOptionalAction, default=default_values.debug
+    )
+    parser.add_argument(
+        "--quiet", action=argparse.BooleanOptionalAction, default=default_values.quiet
+    )
+    parsed_args = parser.parse_args(args)
+    return Parameters.from_namespace(parsed_args)